Étalons pharmaceutiques
Les standards pharmaceutiques sont un ensemble complet de matériaux de référence essentiels pour garantir la sécurité, l'efficacité et la qualité des produits pharmaceutiques. Cette catégorie comprend des standards pour les ingrédients pharmaceutiques actifs (APIs), qui sont les composants principaux responsables des effets thérapeutiques. De plus, elle couvre les composés et métabolites pertinents pour les industries pharmaceutique et vétérinaire, fournissant des points de référence pour la mesure et l'analyse précises de ces substances. Les standards de contrôle des nitrosamines sont cruciaux pour détecter et atténuer les nitrosamines potentiellement nocives dans les formulations médicamenteuses. Les standards de toxicologie aident à évaluer la sécurité et les effets indésirables potentiels des composés pharmaceutiques. En outre, les standards pour les activateurs et les inhibiteurs enzymatiques sont essentiels pour la recherche et le développement, permettant des études précises des voies biochimiques et des mécanismes des médicaments. Ces standards pharmaceutiques sont des outils indispensables pour la conformité réglementaire, le contrôle de qualité et la recherche, garantissant que les produits pharmaceutiques répondent à des critères stricts de sécurité et d'efficacité.
Sous-catégories appartenant à la catégorie "Étalons pharmaceutiques"
- APIs pour la recherche et les impuretés(274.905 produits)
- Activateurs et inhibiteurs d'enzymes(2.827 produits)
- Nitrosamines(2.605 produits)
- Composés et métabolites pharmaceutiques et vétérinaires(2.871 produits)
- Toxicologie(13.652 produits)
7836 produits trouvés pour "Étalons pharmaceutiques"
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Biotin-PEG4-azide
CAS :<p>Biotin-PEG4-azide is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. Biotin-PEG4-azide is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.</p>Formule :C20H36N6O6SDegré de pureté :Min. 95%Couleur et forme :White PowderMasse moléculaire :488.6 g/molN-Benzoylthiourea
CAS :N-Benzoylthiourea (NBTA) is a fluorescent compound that has been used as an optical sensor for the detection of hydrogen. In addition, NBTA acts as an antimicrobial agent and can be used to treat autoimmune diseases. It has been shown to bind to human serum proteins and nucleic acids in sublethal doses, which may lead to its use in wastewater treatment. NBTA also has a stable complex with dyes such as fluorescein and rhodamine, making it a good choice for surface methodology applications. Pharmacokinetic properties of this drug have not been studied in humans.Formule :C8H8N2OSDegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :180.23 g/mol2-Nitrophenylacetic acid
CAS :2-Nitrophenylacetic acid is a synthetic product that has been studied by electrochemical techniques. It is soluble in human serum and can be detected by a chromatographic method. The cationic surfactant, oxindole, chloride, and optimal reaction conditions are known for the solute. 2-Nitrophenylacetic acid is a pharmaceutical drug that can be cleaved into nitro and carboxylate products with hydrochloric acid and β-unsaturated ketone as cleavage products.Formule :C8H7NO4Degré de pureté :Min. 98 Area-%Couleur et forme :PowderMasse moléculaire :181.15 g/molN-(Aminoethyl)-5-naphthylamine-1-sulfonic acid
CAS :The Michaelis-Menten kinetics of N-(Aminoethyl)-5-naphthylamine-1-sulfonic acid (NENSA) have been determined by studying the reaction of NENSA with a variety of acceptors. Basic fibroblasts were found to be a good substrate for this compound and it was shown that proteolytic activity is required for the hydrolysis of NENSA. The toxin is also reactive with the enzyme polymerase chain, which inhibits bacterial growth. In the presence of epidermal growth factor, NENSA has been shown to inhibit proliferation in fetal bovine retinal cells and human epidermal keratinocytes.Formule :C12H14N2O3SDegré de pureté :Min. 97 Area-%Couleur et forme :Yellow PowderMasse moléculaire :266.32 g/mol3'-β-Dimethyl-β-nitrostyrene
CAS :<p>3'-beta-Dimethyl-beta-nitrostyrene is a versatile building block that can be used in organic synthesis. It is a high quality, useful intermediate and reaction component for use in the pharmaceutical industry. 3'-beta-Dimethyl-beta-nitrostyrene has been employed as a building block in the synthesis of complex compounds. This compound is an excellent reagent, which makes it useful as a speciality chemical. 3'-beta-Dimethyl-beta-nitrostyrene is an important scaffold for research chemicals and can be used to synthesize new compounds.</p>Formule :C10H11NO2Degré de pureté :Min. 95%Masse moléculaire :177.2 g/molRiboflavin 5'-phosphate sodium salt dihydrate
CAS :Riboflavin 5'-phosphate sodium salt dihydrate is a fine chemical that belongs to the group of complex compounds. It is a versatile building block, which can be used as a reaction component in research or as an intermediate for the production of other chemicals. Riboflavin 5'-phosphate sodium salt dihydrate has many applications, such as being a useful scaffold for the preparation of new molecules and being a reagent for reactions involving nucleotides. This compound also has high quality and is often used in speciality chemicals.Formule :C17H20N4NaO9P·2H2ODegré de pureté :(Uv) 73.0 To 79.0%Couleur et forme :PowderMasse moléculaire :514.36 g/molEthyl 3-nitrocinnamate
CAS :<p>Ethyl 3-nitrocinnamate is a synthetic compound that belongs to the group of stilbene derivatives. It has been used as an intermediate in the synthesis of other compounds. Ethyl 3-nitrocinnamate is not naturally occurring and can be synthesized by isomerization of cinnamic acid and nitration of ethyl cinnamate. The stereochemical and stereoselective properties of this compound can be utilized for the synthesis of other compounds. Nitrobenzaldehyde reacts with nitrovinyl chloride to form oxetane, which then reacts with acetonitrile to produce ethyl 3-nitrocinnamate.</p>Formule :C11H11NO4Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :221.21 g/molDiazolidinyl urea
CAS :<p>Diazolidinyl urea is a preservative used in cosmetics and pharmaceuticals. It is an antimicrobial agent that causes cell lysis by inhibiting the respiratory synthesis of bacteria. Diazolidinyl urea has been shown to be effective against Gram-positive and Gram-negative bacteria, yeast, and mold. The analytical method for diazolidinyl urea is well established, with detection limits of 0.1 ppm. Diazolidinyl urea is stable under normal conditions, but can be degraded by heat or pH changes. This preservative also inhibits microbial growth by reducing the availability of p-hydroxybenzoic acid (pHBA) and formaldehyde as substrates for bacterial metabolism. Diazolidinyl urea also prevents the formation of biofilms on wet surfaces and exhibits some anti-inflammatory effects.</p>Formule :C8H14N4O7Couleur et forme :PowderMasse moléculaire :278.22 g/mol2-Hydroxy-4,6-dimethoxyacetophenone
CAS :<p>2-Hydroxy-4,6-dimethoxyacetophenone is a natural compound that has been shown to have significant cytotoxicity in vitro against human colon cancer cells. This compound may be used as an alternative treatment for bowel disease and other conditions by blocking the apoptosis pathway. 2-Hydroxy-4,6-dimethoxyacetophenone binds to DNA, preventing DNA from polymerizing into chromatin and halting the cell cycle. It also inhibits the production of xanthoxylin, which is involved in the formation of cell nuclei. The mechanism of action for this drug is similar to that of chemical pesticides and radiation treatment.</p>Formule :C10H12O4Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :196.2 g/mol1,3,7-Trichloronaphthalene
CAS :<p>This validated method for the analysis of 1,3,7-trichloronaphthalene is based on a validated experimental method. It uses a set of structural coefficients and an experimental value to calculate the bioconcentration factor (BCF). The BCF is then used to calculate the optimum vector, which is found by using descriptors and structural factors. The experimental values are also used to determine the vector. This method has been validated experimentally and theoretically.</p>Formule :C10H5Cl3Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :231.5 g/molAcitretin
CAS :Produit contrôlé<p>Retinoid;activates nuclear retinoid acid receptor; antineoplastic; anti-psoratic</p>Formule :C21H26O3Degré de pureté :Min. 95%Couleur et forme :Yellow PowderMasse moléculaire :326.43 g/mol4-Chloro-3-nitrophenylacetamide
CAS :<p>4-Chloro-3-nitrophenylacetamide is a chemical compound that can be used as a reagent, useful scaffold for research, and a high quality research chemical. CAS No. 5540-60-3, this versatile building block is useful for the synthesis of complex compounds and fine chemicals.</p>Formule :C8H7ClN2O3Degré de pureté :Min. 98 Area-%Couleur et forme :PowderMasse moléculaire :214.61 g/molNaphthol AS-BI-phosphate
CAS :<p>Fluorogenic substrate for phosphatase, e.g type 5 TRAP 12</p>Formule :C18H15BrNO6PCouleur et forme :PowderMasse moléculaire :452.19 g/mol4,4'-Bis(diethylmethylphosphonate)-2,2'-bipyridine
CAS :4,4'-Bis(diethylmethylphosphonate)-2,2'-bipyridine is a molecule that is covalently tethered to the copper oxide surface. The coordination of the 4,4'-bis(diethylmethylphosphonate)-2,2'-bipyridine ligand with the copper oxide surface is catalytic and bifunctional. This molecule has been shown to be able to coordinate with two different metal ions as well as act as a ligand for other metal ions. It can also be functionalized in order to create new molecules with different properties.Formule :C20H30N2O6P2Degré de pureté :Min. 96 Area-%Couleur et forme :White PowderMasse moléculaire :456.41 g/mol6',7'-Dihydroxy bergamottin
CAS :<p>Bergamottin is a naturally occurring flavonoid that is found in grapefruit and other citrus fruit. It has been shown to inhibit the activity of the P-glycoprotein (P-gp) transporter in human cells, which may lead to drug interactions. A number of analytical methods have been developed for the determination of bergamottin in biological samples such as humans, rat liver microsomes, and natural compounds. Bergamottin has been shown to be a potent inhibitor of cytochrome P450 enzymes and can inhibit skin cancer development in mice by inhibiting the growth of human keratinocytes (HK-2 cells). Bergamottin also inhibits tumorigenesis in mice by decreasing cell proliferation and inducing apoptosis in hk-2 cells.</p>Formule :C21H24O6Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :372.41 g/mol(S)-(+)-1,1'-Binaphthyl-2,2'-diyl hydrogen phosphate
CAS :<p>(S)-(+)-1,1'-Binaphthyl-2,2'-diyl hydrogen phosphate is an organic compound that is used as an analytical reagent. It is a covalent linker with a phosphate group on one end and a binaphthyl group on the other end. The phosphate group can be used to bind solutes for analysis in analytical chemistry. (S)-(+)-1,1'-Binaphthyl-2,2'-diyl hydrogen phosphate has been shown to have inhibition of sulfonic acid groups from environmental pollution. This compound also has chiral properties and can be separated into its two enantiomers using titration calorimetry at constant temperature.</p>Formule :C20H13O4PDegré de pureté :Min. 95%Couleur et forme :White Off-White PowderMasse moléculaire :348.29 g/mol1,6-Dihydroxy-naphthalene
CAS :1,6-Dihydroxy-naphthalene is a fluorescent compound that has been used as a cross-linking agent for proteins and as an analytical method for determining the concentration of naphthalene. It has been shown to inhibit protein synthesis by acting as an enzyme inhibitor, preventing the formation of peptide bonds in the ribosome. 1,6-Dihydroxy-naphthalene also has cationic surfactant properties and inhibits the growth of bacteria by binding to bacterial 16S ribosomal RNA, inhibiting protein synthesis. The chemical diversity of this molecule is due to intramolecular hydrogen bonding between its two hydroxyl groups. This bond can be broken by amines such as amino acids or ammonia, which are found in proteins.Formule :C10H8O2Degré de pureté :Min. 98 Area-%Couleur et forme :White Green PowderMasse moléculaire :160.17 g/mol2-Chloro-2',6'-dimethylacetanilide
CAS :2-Chloro-2',6'-dimethylacetanilide is a synthetic drug that is used as an intermediate for the manufacture of diazepam. It has been shown to be effective in reducing the severity of symptoms and mortality rate of patients with severe influenza, also known as "pandemic flu". This compound has been shown to be effective in protecting animals from the effects of carbon monoxide poisoning. It has also been used in medicines such as covid-19, which is used for the treatment of Parkinson's disease. 2-Chloro-2',6'-dimethylacetanilide can be found in a number of other pharmaceuticals, such as antidepressants and antibiotics.Formule :C10H12ClNODegré de pureté :Min. 95%Couleur et forme :White PowderMasse moléculaire :197.66 g/mol(Cyanomethyl)urea
CAS :<p>Cyanomethyl)urea is a fine chemical that belongs to a class of compounds known as ureas. It is used as a versatile building block in the synthesis of more complex compounds, as a research chemical and as an intermediate. It can be used to synthesize pharmaceuticals, pesticides, and other chemicals. Cyanomethyl)urea is used in the production of polyurethane foams, which are commonly found in mattresses, furniture upholstery and insulation.</p>Formule :C3H5N3ODegré de pureté :Min. 95%Couleur et forme :Brown PowderMasse moléculaire :99.09 g/mol3,5-Diiodo-L-thyronine
CAS :<p>3,5-Diiodo-L-thyronine (3,5DIT) is a thyroid hormone that has been shown to have a number of physiological effects. It is capable of altering the activity of target enzymes, such as growth factor β1 and 3,5-diiodo-L-thyronine 5'-deiodinase (DID). 3,5DIT can stimulate cardiac effects by binding to the nuclear receptor TRβ1. It also stimulates weight loss by regulating fat metabolism through its effect on adipose tissue. 3,5DIT has been shown to alter mitochondrial functions and mitochondrial energy metabolism. This hormone may be used as an analytical tool for measuring mitochondrial functions in living cells.</p>Formule :C15H13I2NO4Degré de pureté :Min. 98 Area-%Couleur et forme :White Off-White PowderMasse moléculaire :525.08 g/mol(S)-2-Methoxy-2-(1-naphthyl)propanoic acid
CAS :(S)-2-Methoxy-2-(1-naphthyl)propanoic acid is a chiral molecule that can exist in two different forms, each of which has the same physical and chemical properties. The two enantiomers are not optically active, meaning they have the same degree of rotation when passed through a polarizing filter. It is an organic compound that is used as a flavoring agent in food chemistry and as a bioactive compound. (S)-2-Methoxy-2-(1-naphthyl)propanoic acid also has been shown to function as an attractant for hemipteran insects such as mosquitoes, although it is not clear if this property is due to its aromatic or enantiomeric structure.Formule :C14H14O3Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :230.26 g/molBromocresol purple
CAS :<p>Bromocresol purple is a hydrophilic dye that has applications in indicating pH and measuring serum albumin concentrations.</p>Formule :C21H16Br2O5SDegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :540.22 g/mola-Bisabolol
CAS :<p>Bisabolol is a sesquiterpene lactone that is found in plants such as chamomile and rose. Bisabolol has been shown to have amoebicidal activity in vitro, as well as antiinflammatory activity. Bisabolol has also been shown to have mitochondrial membrane potential-modulating effects and to inhibit the growth of human cancer cells. Bisabolol can act intracellularly by inhibiting protein synthesis, which may lead to apoptosis. It also inhibits the production of pro-inflammatory cytokines, such as TNF-α and IL-1β, which are involved in tumorigenesis. Bisabolol can also bind to polymyxin B and form a complex that is more effective than polymyxin B alone at killing bacteria.</p>Formule :C15H26ODegré de pureté :Min. 95%Couleur et forme :Colorless Clear LiquidMasse moléculaire :222.37 g/molL-Serine β-lactone tetrafluoroborate
CAS :L-Serine beta-lactone tetrafluoroborate salt is a fine chemical that is used as a reagent, complex compound and building block in the synthesis of other compounds. It is also an important intermediate for the production of pharmaceuticals and agrochemicals. L-Serine beta-lactone tetrafluoroborate salt has been shown to be a versatile building block in organic synthesis. This product may react with acids to produce hydrogen fluoride gas, which can cause injury or death through inhalation or contact with skin, eyes or clothing.Formule :C3H5NO2•BF4•HDegré de pureté :Min. 95%Couleur et forme :White/Off-White SolidMasse moléculaire :174.89 g/mol5,5'-Dehydrodivanillate
CAS :5,5'-Dehydrodivanillate is an intermediate in the biosynthesis of vanillin from 5-carboxyvanillic acid. It is produced by the enzyme dehydrodivanillate synthase and converted to vanillin by the enzyme dehydrodivanillate reductase. The conversion of 5,5'-dehydrodivanillate to vanillin is an example of a radical coupling reaction. In plant cells, this intermediate is found in the cytoplasm and vacuoles. The uptake of 5,5'-dehydrodivanillate into plant cells has been shown to be facilitated by a transporter gene that is regulated by the presence of biphenyl or fatty acids. This function may be related to its role as an alternative substrate for olefin biosynthesis in plants. The dry weight of plant cells grown on 5,5'-dehydrodivanillate was shown to be greater than cells grown on other carbon sourcesFormule :C16H14O8Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :334.28 g/mol9,10-Bis(bromomethyl)anthracene
CAS :<p>9,10-Bis(bromomethyl)anthracene is a chemical compound that can be used as a chemical probe for electron spin resonance (ESR) spectroscopy. The ESR spectrum of 9,10-bis(bromomethyl)anthracene in trifluoroacetic acid shows a single peak at g = 2.0286 and the emission spectrum exhibits peaks at 612 nm and 581 nm. 9,10-Bis(bromomethyl)anthracene has been used to detect potassium ions by observing the fluorescence properties of the chromophore. This compound also has fluorine groups which make it very soluble in nonpolar solvents such as hexane or pentane. It can be synthesized with an efficient method that involves reacting an imine with dichloroacetic acid followed by reaction with bromine and potassium hydroxide in chloroform.</p>Formule :C16H12Br2Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :364.07 g/mol4'-(2-Chloroethyl)acetophenone
CAS :<p>4'-(2-Chloroethyl)acetophenone is a reagent that is used in organic synthesis. It is an essential building block for the synthesis of many other compounds and has been used to synthesize a variety of useful compounds, such as the pharmaceuticals erythromycin and penicillin. 4'-(2-Chloroethyl)acetophenone can be obtained from various suppliers, with high quality guaranteed. This chemical has been classified by CAS No. 69614-95-5 and has a molecular weight of 166.3 g/mol.</p>Formule :C10H11ClODegré de pureté :Min. 95%Masse moléculaire :182.65 g/mol2-Oxo-2H-pyran-5-carboxylic acid methyl ester
CAS :2-Oxo-2H-pyran-5-carboxylic acid methyl ester is an activated form of 2-oxopyran. It reacts with nucleophiles, such as malic acid, to form ethyl esters. This reaction is an example of the Friedel-Crafts reaction, which is a type of electrophilic aromatic substitution. The rate of this reaction depends on the activation energies and fluorescence properties of the reactants. The mechanism for this reaction is that the double bond in the carbonyl group is ruptured by attacking nucleophiles, resulting in a release of hydrogen gas and formation of carboxylic acid derivatives. The product can be isolated using a solvent extraction technique or purified using column chromatography.Formule :C7H6O4Degré de pureté :Min. 98 Area-%Couleur et forme :PowderMasse moléculaire :154.12 g/mol1-(2'-Bromophenyl)-1-hydroxyethane
CAS :<p>1-(2'-Bromophenyl)-1-hydroxyethane is a biomolecule that has been shown to inhibit the growth of corynebacterium. This inhibition is stereoselective, with the (S) form being more effective than the (R) form. The oxidation products of this compound are produced by catalytic dehydration of formate and ethyl group elimination, which produce ferrocene and hydroxymethylferrocene respectively. These products are stereogenic, giving rise to chiral molecules that can be used in efficient methods for organic synthesis.</p>Formule :C8H9BrODegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :201.06 g/mol(+)-Biotin-(PEO)3-amine
CAS :<p>(+)-Biotin-(PEO)3-amine is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. (+)-Biotin-(PEO)3-amine is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.</p>Formule :C16H30N4SO4Degré de pureté :Min. 95 Area-%Couleur et forme :White Off-White PowderMasse moléculaire :374.5 g/molL-Alanosine
CAS :<p>L-Alanosine is a nucleotide that is synthesized from adenosine and alanine. It is the first substrate in the synthetic pathway of l-alanosine. L-Alanosine has been shown to have antibiotic properties against gram negative bacteria, such as Escherichia coli and Klebsiella pneumoniae. L-Alanosine inhibits synthesis of bacterial cell walls by interfering with the enzymatic activity of bacterial ribonucleotide reductase, which converts ribonucleotides to deoxyribonucleotides. The molecule also inhibits protein synthesis by binding to the 30S subunit of bacterial ribosomes, preventing elongation of polypeptide chains. In vivo treatment with L-alanosine significantly reduced tumor size and increased levels of ATP in colorectal adenocarcinoma cells.<br>br>br></p>Formule :C3H7N3O4Degré de pureté :Min. 95%Couleur et forme :Off-White PowderMasse moléculaire :149.11 g/mol4'-Methoxy-α-naphthoflavone
CAS :4'-Methoxy-alpha-naphthoflavone is a flavonoid that has been shown to have inhibitory effects on the metabolism of 3-methylcholanthrene and other xenobiotics. The compound inhibits the oxidation of these compounds by both the cytochrome P450 and NADPH-dependent oxidases. 4'-Methoxy-alpha-naphthoflavone also inhibits the activation of these compounds by hepatic tissues, as well as the metabolism of phenobarbital by rat liver microsomes. The compound may be metabolized in vivo to 4'-hydroxy-alpha-naphthoflavone, which is more potent than 4'-methoxy-alpha-naphthoflavone.Formule :C20H14O3Degré de pureté :Min. 95%Masse moléculaire :302.32 g/molNalpha-Acetyl-D-asparagine
CAS :<p>Nalpha-Acetyl-D-asparagine is a chiral amino acid that has been used to study the synthesis of peptides. It is soluble in water and can be used as a substrate for the enzymatic reaction of glyoxylate with ammonium sulfate. The Nalpha-acetyl group increases the affinity of this amino acid for sephadex g-100, a chromatographic material. This product can be prepared using a preparative column packed with silica gel and an eluent containing ammonium sulfate. It also has optical properties that make it useful for determining concentration and purity.</p>Formule :C6H10N2O4Degré de pureté :Min. 95%Masse moléculaire :174.15 g/molH-D-allo-Threonine methyl ester hydrochloride
CAS :<p>H-D-allo-Threonine methyl ester hydrochloride is a speciality chemical that is used in research and development. It is an intermediate for the synthesis of other compounds, such as pharmaceuticals, pesticides, and fragrances. H-D-allo-Threonine methyl ester hydrochloride has been shown to be useful in the production of methanol and ethanol. This compound also has high quality and can be used as a reagent for other reactions.</p>Formule :C5H11NO3•HClDegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :169.61 g/mol2',4'-Dimethylacetophenone
CAS :2',4'-Dimethylacetophenone is an acetylating agent that can be used in organic synthesis. It is a chiral compound, which means it has two enantiomers with different properties. The racemic mixture of 2',4'-dimethylacetophenone degrades to form 2-chloro-2',4'-dimethoxybenzene and 2,4-dimethoxybenzoic acid. The reaction time for the formation of these products depends on the concentration of the reactants as well as the acid catalyst used. The Friedel-Crafts acylation occurs when an acetylated phenol reacts with an alkyl halide in the presence of an acid catalyst. This reaction produces a diketone and an alkyl halide, which can then undergo a second Friedel-Crafts acylation with another acetylated phenol. Acetylation also methylates ketones to produce methyl ketones.refFormule :C10H12ODegré de pureté :Min. 95%Couleur et forme :Colorless Clear LiquidMasse moléculaire :148.2 g/mol1,2-Dioleoyl-sn-glycero-3-phosphatidylethanolamino (+)-biotin
CAS :This is a speciality chemical and is not intended for use in food, drug, or cosmetic applications. This fine chemical is a useful building block, which can be used to synthesize complex compounds. It has been shown to have high reactivity with a variety of reagents, making it an excellent research component.Formule :C51H92N3O10PSDegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :970.33 g/mol1-(4-(Methylthio)phenyl)-2-nitropropene
CAS :<p>Please enquire for more information about 1-(4-(Methylthio)phenyl)-2-nitropropene including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>Formule :C10H11NO2SDegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :209.27 g/molFmoc-3-(3'-pyridyl)-D-alanine
CAS :Fmoc-3-(3'-pyridyl)-D-alanine is a building block for the synthesis of a wide variety of compounds. This compound has been shown to be an excellent and versatile starting material for the synthesis of complex compounds. Fmoc-3-(3'-pyridyl)-D-alanine is also a useful intermediate in organic synthesis and can be used as a reagent or in research. It has CAS number 142994-45-4.Formule :C23H20N2O4Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :388.42 g/mol3-Methylnaphth[2,1-d]isoxazole
CAS :<p>Naphth[4,5-A]isoxazole is a chemical compound that has been shown to react with other organic compounds and is used as a reagent in organic synthesis. Naphth[4,5-A]isoxazole can be used as a building block for the synthesis of complex compounds, such as heterocycles. This chemical is also useful for the production of fine chemicals and pharmaceuticals.</p>Formule :C12H9NODegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :183.21 g/molO-tert-Butyl-L-tyrosine
CAS :<p>O-tert-Butyl-L-tyrosine is a biostable, low molecular weight, hydrophobic, and diffraction active compound. It can be used as a solvent for chiral and non-chiral compounds. O-tert-Butyl-L-tyrosine has been shown to have biological function in the synthesis of peptides, proteins, and amides. This compound also has an effect on gelation and is often used in organic solvents.</p>Formule :C13H19NO3Degré de pureté :Min. 95%Couleur et forme :SolidMasse moléculaire :237.29 g/molPerylene
CAS :<p>Perylene is a polycyclic aromatic hydrocarbon that is used in the synthesis of cationic polymers. It has excellent photochemical properties and a high value for the phase transition temperature (150 °C). Perylene is also chemically stable, with a polymerization chain length of at least 12. The molecule is composed of an acyl chain and an unsaturated group. It reacts with nucleophiles to form adducts and it can be cross-linked by intermolecular hydrogen bonding. Perylene can be synthesized from acetylene, benzene, and formaldehyde in the presence of nitric acid or peroxide. The molecule absorbs light at wavelengths below 300 nm and undergoes transfer reactions to release electrons when exposed to light.</p>Formule :C20H12Couleur et forme :Yellow PowderMasse moléculaire :252.31 g/molHederasaponin B
CAS :Hederasaponin B is a triterpenoid saponin found in Chinese herbs, such as Radix Astragali. The compound has been shown to have anti-inflammatory and anti-leishmanial activities in vitro and in vivo. Hederasaponin B also has neuroprotective properties, which may be due to its ability to inhibit the production of proinflammatory cytokines such as tumor necrosis factor-α (TNF-α) and nitric oxide (NO). Hederasaponin B has low bioavailability and must be administered orally for maximum effect.Formule :C59H96O25Degré de pureté :Min. 95%Couleur et forme :White PowderMasse moléculaire :1,205.38 g/molDiosmetinidin chloride
CAS :Diosmetinidin chloride is a fine chemical that can be used as a versatile building block for the synthesis of complex compounds. Diosmetinidin chloride has been shown to have useful scaffolding properties and is useful as a reaction component in research chemicals and speciality chemicals. It reacts with alcohols, phenols, amines, thiols, sulfides, and carboxylic acid derivatives to form new compounds. This compound is also used as a reagent in organic synthesis.Formule :C16H13ClO5Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :320.72 g/molTimosaponin B II
CAS :Timosaponin B II is a natural compound that inhibits the activity of cytochrome P450 enzymes. It has been shown to induce autophagy in a dopamine-dependent manner, which may be due to its ability to decrease mitochondrial membrane potential and increase phase transition temperature. Timosaponin B II also induces neurotrophic factors and matrix effects, which are beneficial for the treatment of inflammatory conditions, neurodegenerative diseases, and metabolic disorders. The drug has been shown to have pharmacokinetic properties that are similar to those of timosaponin I. The molecular weight of the molecule was determined by LC-MS/MS analysis as 527.2 amu. Timosaponin B II is not metabolized by cytochrome P450 enzymes or glucuronidases, but it is hydrolyzed by esterases or glutathione reductase.Formule :C45H76O19Degré de pureté :Min. 95%Couleur et forme :White PowderMasse moléculaire :921.07 g/mol2,2-Bis(hydroxymethyl)-2,2',2''-nitrilotriethanol
CAS :<p>Bis-Tris is a Bis(2-hydroxyethyl) amine buffer that forms metal chelates and can be used with proteins and nucleic acids. This buffering agent has an optimal pH range of 5.8-7.2 and a pKa of 6.46.</p>Formule :C8H19NO5Degré de pureté :Min. 98%Couleur et forme :PowderMasse moléculaire :209.24 g/mol3',5'-Dinitroacetophenone
CAS :3',5'-Dinitroacetophenone is a chemical compound that is used as an intermediate in the synthesis of other organic compounds. This chemical is highly toxic and can be fatal if ingested. 3',5'-Dinitroacetophenone has a high solubility in water, but reacts quickly with air, so it should be stored in an airtight container. It has been shown to produce foramen ovale-type lesions when applied to the maxillary sinus. This chemical also has an electron deficient profile and produces frequencies at about 350 MHz and chloride ions at about 250 MHz.Formule :C8H6N2O5Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :210.14 g/molbeta-Naphthylacetate
CAS :<p>Beta-naphthylacetate is a chemical that is used in the synthesis of pharmaceuticals and pesticides. It is an ester of naphthalene and acetic acid. Beta-naphthylacetate has been shown to inhibit the enzyme activity of hydrogen fluoride, which is used in the production of polyester fibers. Beta-naphthylacetate has also been shown to have anti-inflammatory properties by inhibiting prostaglandin synthesis. This chemical also has epoxidase activity, which makes it useful in the conversion of dl-alpha-tocopherol to vitamin E. Beta-naphthylacetate is soluble in water and can be made into solid dispersions or cationic surfactant solutions with high concentrations of beta-naphthylacetate, making it useful for tissue culture. The optimum pH for beta-naphthylacetate is between 7 and 8, while the optimum temperature range is between 25</p>Formule :C12H10O2Degré de pureté :Min. 95%Couleur et forme :White PowderMasse moléculaire :186.21 g/molBiotin-PEG3-azide
CAS :<p>Biotin-PEG3-azide is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. Biotin-PEG3-azide is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.</p>Formule :C18H32N6O5SDegré de pureté :(¹H-Nmr) Min. 95 Area-%Couleur et forme :PowderMasse moléculaire :444.55 g/mola-Ketoglutaric acid
CAS :a-Ketoglutaric acid is a naturally occurring organic compound that is found in the body as well as in plants. It belongs to the group of organic acids and is produced from the breakdown of amino acids, such as leucine and valine. a-Ketoglutaric acid has been shown to have physiological effects on cells and tissues by inhibiting enzymes involved in energy metabolism. In vitro assays have shown that a-ketoglutaric acid has inhibitory properties against plant metabolism. This drug also inhibits the transcriptional regulation of genes for fatty acid synthesis in human erythrocytes. A-ketoglutaric acid has also been shown to inhibit glucose production in rat liver cells, which may be due to its ability to bind covalently with proteins or lipids, changing their structures and functions.Formule :C5H6O5Couleur et forme :White Off-White PowderMasse moléculaire :146.1 g/molCinnamamide
CAS :Cinnamamide is a natural compound that is structurally related to the amino acid lysine and has been shown to regulate skin cell proliferation. Cinnamamide has also been found to be an effective inhibitor of the mitochondrial membrane potential in human erythrocytes. It has been shown to inhibit the production of reactive oxygen species (ROS) and reverse oxidative damage in cells, which may reduce the risk of developing autoimmune diseases. Cinnamamide is also able to prevent cell death caused by epidermal growth factor (EGF) withdrawal and induce apoptosis in HL-60 cells.Formule :C9H9NODegré de pureté :Min. 95%Couleur et forme :White Off-White PowderMasse moléculaire :147.17 g/mol
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