Étalons pharmaceutiques

Applications DL-Methionine methylsulfonium chloride (cas# 3493-12-07) is a useful research chemical.

2-Amino-4,8-naphthalenedisulfonic acid is a structural analog of the natural amino acid phenylalanine. It is an inhibitor of the enzyme tyrosinase, which participates in the oxidation of dopamine to DOPA and subsequent conversion to melanin. 2-Amino-4,8-naphthalenedisulfonic acid has been shown to inhibit the growth of probiotic bacteria and can be used as a food additive. The compound also inhibits the oxidation catalyst that is required for some analytical chemistry tests. 2-Amino-4,8-naphthalenedisulfonic acid has been shown to have toxicological properties in animal studies and this toxicity is exacerbated by its ability to bind with pyridine nucleotides found in cells. The toxicological effects are thought to be related to the inhibition of protein synthesis that leads to cell death.

1-Naphthaldehyde is a coordination compound that contains 1 naphthyl group and an oxygen atom. It can be used as an oxidation catalyst, intramolecular hydrogen, or a reaction solution. The antimicrobial activity of 1-naphthaldehyde has been shown in the presence of sodium carbonate or potassium phosphate buffer. 1-Naphthaldehyde has been shown to possess structural properties similar to those of other metal chelates, such as zinc pyrithione. The protonated form of 1-naphthaldehyde has been identified by means of analytical methods including gas chromatography and mass spectrometry.

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3-Hydroxy-6,2',4',5'-tetramethoxychalcone (3HTMC) is a fine chemical that is used as a versatile building block in the synthesis of various organic compounds. 3HTMC is soluble in most organic solvents and can be used as an intermediate for the preparation of other organic compounds. This chemical has been shown to be effective in the formation of complex compounds with high quality. 3HTMC is available in bulk quantities at competitive prices.

3,3',4',5,5',8-Hexahydroxyflavone is a naturally occurring flavonoid, which is a type of polyphenolic compound. It is derived from various plant sources, including fruits, vegetables, and certain medicinal herbs. The compound is characterized by its chemical structure, which includes multiple hydroxyl groups, contributing to its biological activity.

The mode of action of 3,3',4',5,5',8-Hexahydroxyflavone involves its interaction with various cellular pathways and enzymes. Primarily, it is known for its antioxidant properties, where it scavenges free radicals and reactive oxygen species, thereby reducing oxidative stress. Additionally, it may exhibit anti-inflammatory effects by modulating signaling pathways involved in inflammation.

In terms of uses and applications, 3,3',4',5,5',8-Hexahydroxyflavone is primarily explored in scientific research focusing on its potential health benefits. Studies investigate its role in disease prevention, particularly conditions associated with oxidative stress and inflammation, such as cardiovascular diseases and neurodegenerative disorders. While it holds promise in these areas, further research is necessary to fully understand its mechanisms and therapeutic potential.

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4-Chlorocinnamic acid is a malonic acid derivative and one of the cinnamic acid derivatives that has been shown to inhibit many chemical reactions. It inhibits the production of tyrosinase, which is an enzyme that catalyzes the conversion of tyrosinase to 4-hydroxycinnamic acid. 4-Chlorocinnamic acid also inhibits the growth of Candida glabrata in vitro. The effect on candida is due to its ability to inhibit the production of hydroxyl group and aromatic hydrocarbon, both of which are required for candida's survival. 4-Chlorocinnamic acid binds with aryl halide and neutral ph, preventing it from reacting with other substances.

D-Asparagine monohydrate is a white crystalline powder that is soluble in water and has a molecular weight of 98.1 g/mol. It inhibits the growth of bacteria by preventing the formation of β-lactamase, which can lead to antibiotic resistance. D-Asparagine monohydrate is used as an additive in the preparation of polyacrylamide gel for electrophoresis and other purposes. It has been found that it can be used as an inhibitor of recombinant proteins, such as those produced by E. coli, with high kinetic activity. It also inhibits the crystallization process and growth rate of Mycobacterium licheniformis.

b-Propiolactone is a plant extract that is found in soybeans. It has been shown to have antiviral properties and can inhibit the growth of certain viruses. b-Propiolactone binds to the active site of an enzyme called RNA polymerase, which blocks RNA synthesis and inhibits viral replication. This compound has also been shown to inhibit virus replication in vitro assays as well as antibody response against hepatitis B. The biological effects of b-propiolactone are thought to be due to its ability to bind with group p2 protein monoclonal antibodies, which may have implications for the prevention of pandemic influenza.

Pentazocine lactate is an opioid that binds to the kappa-opioid receptor. It has a low potency and is used as an analgesic. Pentazocine lactate has been shown to be effective in the treatment of eosinophilic fasciitis, which is a rare inflammatory disease of the skin and soft tissue. Side effects for this drug include respiratory depression and sedation, constipation, nausea/vomiting, urinary retention, erythema multiforme, pruritus, erythema nodosum, thrombocytopenia, and fever. Pentazocine lactate may also interact with other drugs such as antidepressants or antipsychotics.

1-(3,4-Methylenedioxyphenyl) 2-nitropropene (1-MPNP) is a phosphatase inhibitor that is active against gram-negative bacteria by inhibiting enterotoxins and chlamydia. 1-MPNP inhibits the activity of tyrosine phosphatases, which are enzymes that play a major role in bacterial virulence. 1-MPNP competitively inhibits the activity of tyrosine phosphatases and prevents them from catalyzing the hydrolysis of polyphosphate substrates. This inhibition leads to an accumulation of polyphosphates in the bacterial cell membrane, which disrupts its permeability and leads to cell death.

22,23-Dihydrobrassicasterol is a sterol present in rhizoma gastrodiae that has been shown to inhibit the growth of oral pathogens. It also has been found to have cholesterol-lowering effects and can be used as an antimicrobial agent to treat gastrointestinal diseases. 22,23-Dihydrobrassicasterol has been found to have inhibitory effects on human serum processes such as the process of producing fibroblasts and on physiological functions such as the inhibition of hepatic steatosis. The pharmacokinetic properties of this drug are not well understood, but it appears to be absorbed from the gut and excreted in urine.

Sodium nitroprusside dihydrate is an oxygen transport agent that works by inhibiting the enzyme cyclase. This inhibits the production of tnf-α and other inflammatory mediators, which reduces inflammation and pain. Sodium nitroprusside dihydrate is used to lower blood pressure in emergency situations, such as shock. It has been shown to be effective for treating pulmonary hypertension, chronic obstructive pulmonary disease, and other conditions related to oxygen transport. Sodium nitroprusside dihydrate is a metastable molecule that can be converted into a stable form (sodium nitroprusside) by ester hydrochloride or fatty acid esters.

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Applications N-Acetylethylene Urea-d4 (cas# 1189701-94-7) is a compound useful in organic synthesis.

Applications Guanosine-5'-triphosphate disodium salt (CAS# 56001-37-7) is a nucleotide used in the preparation of photoreactive GTP affinity probes, and in inhibitors of eukaryotic initiation factor eIF-4E.
References George Cisar, E. A.; J. Am. Chem. Soc., 135, 4676 (2013); Ghosh, P.; et al.: Bioorg. Med. Chem. Lett., 16, 750 (2006).

Sodium N-lauroylsarcosinate is a surfactant that is used in water treatment, wastewater treatment, and as a detergent. It is also used as an analytical tool for the titration calorimetry of sodium salts. Sodium N-lauroylsarcosinate is a sodium salt that belongs to the group of sodium salts. It has been shown to have biological properties such as permeability through human serum and biodegradability. The salt form of this compound has an electrochemical impedance spectrum which can be used to identify it.

1-(3-Chlorophenyl) thiourea is a curcumin analog that has been shown to inhibit the epidermal growth factor (EGF) receptor. It is synthesized from 1,2-dichlorobenzene and urea in a two-step process. The anhydrous potassium carbonate is first converted to the potassium salt with an acid chloride. The second step is the reaction of this salt with urea in the presence of excess anhydrous potassium carbonate. This product has been shown to be effective against cancer cells and may be used as a potential anticancer agent for treatment of skin cancer. 1-(3-Chlorophenyl) thiourea inhibits EGF receptor by binding to it and preventing its activation, which prevents cell proliferation and reduces tumor size.

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Applications Triethylborane reacted with 8-hydroxyquinoline to synthesize three 8--​hydroxyquinolato (q) boron compounds B(C2H5)​2q (1)​, BPh2q (2)​, and B(2-​naph)​2q (3).
References Wu, Q., et al.: Chem. Mater., 12, 79 (2000).

Applications The formation of p-Cresol-(methyl-13C) via phenol methylation at higher temperature from the deactivation of basic catalyst.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Borodina, I. B., et al.: Russ. J. Phys. Chem., 80, 892-898 (2006)

2,4,4’-Trichlorobiphenyl is a polychlorinated biphenyl congener. It has been shown to have an adverse effect on the central nervous system, causing neurotoxicity. 2,4,4’-Trichlorobiphenyl has been used as a model system for the study of the effects of environmental toxins on mitochondrial membrane potential and lipid peroxidation. 2,4,4’-Trichlorobiphenyl binds to fatty acids in mitochondria and inhibits fatty acid β-oxidation. The inhibition of fatty acid oxidation leads to increased levels of protocatechuic acid in the serum and liver tissue. 2,4,4’-Trichlorobiphenyl has also been found to be toxic to aquatic organisms such as fish and shrimp at low concentrations.

Naphthalene is a chemical that is used for wastewater treatment and as a pesticide. It is also used in the manufacturing of polymers, resins, and plastics. Naphthalene has antimicrobial properties due to its hydrophobic effect. Naphthalene's antimicrobial activity is based on its ability to react with the skeleton of bacterial cells and disrupt the integrity of their outer membrane. Naphthalene also interacts with proteins and DNA, causing cell death. The molecular mechanisms of naphthalene's antibacterial activity are not well understood but have been studied using Hl-60 cells, which are immortalized human monocytic leukemia cells. This study showed that naphthalene affects the cell cycle by inhibiting protein synthesis in bacteria through binding to ribosomes or by disrupting the dna replication process.

a,O-Dimethyl serotonin is a monoamine compound that is synthesized by the enzymatic decarboxylation of 5-hydroxytryptophan. It has been shown to increase dopamine levels and inhibit the enzyme activity of serotonin in mice. This drug also binds to 5-ht2 receptors and induces the release of serotonin from nerve cells. A linear calibration curve was obtained using bufotenin as a standard. This drug has been used in analytical toxicology for determining the uptake of serotonin into human lung tissue and its effect on 5-ht1a receptors. In addition, a study was conducted with perennial ryegrass to determine whether this drug inhibits plant toxin synthesis. The results showed that it did not have an inhibitory effect on plant toxins and may even promote their synthesis.

Valeric acid is a fatty acid that is used in the manufacture of polymers. Valeric acid can be synthesized from caproic acid, which is found in palm oil and coconut oil. Valeric acid has been shown to inhibit the activity of nicotinic acetylcholine receptors at low concentrations and to have an inhibitory effect on the ryanodine receptor at high concentrations. Valeric acid also has a matrix effect on analytical methods such as gas-liquid chromatography, which has been modeled using polymer compositions.

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L-Tyrosine dipotassium salt is a high quality, reagent, complex compound, useful intermediate and fine chemical. It is a useful scaffold that can be used in the synthesis of various important natural products. L-Tyrosine dipotassium salt is a versatile building block that has been widely applied in research on the development of new drugs, such as antiviral agents and antibiotics. L-Tyrosine dipotassium salt can act as a reaction component for many organic reactions. It also has applications in many areas such as medicine, food production, and environmental protection.

4-Acetyl-1,8-naphthalic anhydride is a naphthoquinone that has been shown to have apoptosis-inducing properties. It inhibits mitochondrial electron transport and the generation of ATP, leading to cell death. 4-Acetyl-1,8-naphthalic anhydride also binds to DNA, which prevents transcription and replication. This compound can be used in vivo assays to evaluate the efficacy of anticancer drugs by determining tumor growth inhibition or the induction of apoptosis in cancer cells. The binding affinity of 4-acetyl-1,8-naphthalic anhydride for DNA is approximately two orders of magnitude higher than its affinity for other cellular components such as proteins or lipids.