
Nucleosídeos e Nucleotídeos
Foram encontrados 3470 produtos de "Nucleosídeos e Nucleotídeos"
Acyclovir EP impurity R
CAS:Acyclovir EP impurity R is a by-product of acyclovir, which has been shown to be stable in acidic and alkaline conditions. It is also linear with high reproducibility and low detection limits. Acyclovir EP impurity R can be detected using a validated RP-HPLC method with an acidified mobile phase. The compound is not photolyzed under the conditions of the assay. This impurity has been detected in batches of acyclovir that have been produced on two different production lines for more than 5 years without any changes in quality or yield.Fórmula:C13H21CIN6O4Pureza:Min. 95%Peso molecular:464.26 g/molRemsesivir related compound 11
CAS:Remsesivir related compound 11 is a research and development chemical that is used as an analytical, drug development, or impurity standard. It is a high purity, pure substance that can be custom synthesized or natural. Remsesivir related compound 11 has been shown to be metabolized by cytochrome p450 enzymes and glutathione reductase and has shown pharmacopoeia activities. Remsesivir related compound 11 can also be used as a HPLC standard for the detection of metabolites in pharmaceutical products.Fórmula:C15H23Cln04pPureza:Min. 95%Peso molecular:347.78 g/molRemdesivir impurity 4
CAS:Remdesivir is an antiviral drug that inhibits the viral enzyme, RNA-dependent RNA polymerase. Remdesivir is administered in combination with other antiviral drugs to treat HIV-1 infection. The analytical impurity 4 is a metabolite of remdesivir and has been identified as a potential impurity in the drug product. CAS No. 2096985-18-9 is the molecular weight of this impurity. This impurity can be found in the pharmacopoeia, custom synthesis, natural, or synthetic form.Fórmula:C21H27N2O7PPureza:Min. 95%Peso molecular:450.42 g/mol1-(2-Deoxy-beta-D-xylofuranosyl)-5-methyluracil
CAS:1-(2-Deoxy-beta-D-xylofuranosyl)-5-methyluracil (1DXP) is a nucleoside that inhibits the enzyme UDP glucose pyrophosphorylase. This enzyme is involved in the synthesis of uridine nucleotides, which are required for RNA and DNA synthesis. 1DXP has been shown to be effective against hepatitis B virus and lymphocytic leukemia cells in vitro. The mechanism of action of 1DXP is not well understood, but it may be related to the inhibition of protein synthesis or cellular metabolism. It may also inhibit the enzyme amino transferase, which is important for the synthesis of aromatic amino acids such as phenylalanine and tyrosine.Fórmula:C10H14N2O5Pureza:Min. 95%Peso molecular:242.23 g/mola-Ribavirin (impurity B)
CAS:Produto ControladoRibavirin is an antiviral drug that inhibits the synthesis of RNA and DNA. It is used to treat human immunodeficiency virus (HIV) infection, hepatitis B, and influenza A. Ribavirin is a nucleoside analog that acts as an antimetabolite by inhibiting acid synthesis in the host cell and therefore blocking viral replication. Ribavirin has been shown to inhibit dna viruses like herpes simplex virus type 1 and 2, as well as RNA viruses like influenza A and respiratory syncytial virus. Ribavirin also binds to the ribonucleotide reductase enzyme, which is necessary for the production of deoxyribonucleotides from ribonucleotides during DNA synthesis, thereby interfering with DNA replication.Fórmula:C8H12N4O5Pureza:Min. 95%Peso molecular:244.2 g/mol4-Amino-1-[3,5-di-O-(4-chlorobenzoyl)-2-deoxy-α-D-ribofuranosyl]-1,3,5-triazin-2(1H)-one
CAS:4-Amino-1-[3,5-di-O-(4-chlorobenzoyl)-2-deoxy-α-D-ribofuranosyl]-1,3,5-triazin-2(1H)-one (4AAT) is an analytical chemical that is used for research and development purposes. 4AAT is a metabolite of the antibiotic ampicillin and has been identified as an impurity in the drug product. It can be synthesized from 2-(4'-chlorophenyl)benzaldehyde, 3,5'-di-O-(4'-chlorobenzoyl)-2',3'-dideoxyribose and sodium azide in a two step process with 98% purity. 4AATs are also found to be present in natural products such as honey or sugar cane juice.
Fórmula:C22H18Cl2N4O6Pureza:Min. 95%Cor e Forma:White Off-White PowderPeso molecular:505.31 g/molRemdesivir related compound 5
CAS:Remdesivir related compound 5 is a plant extract that inhibits the growth of wheat. Remdesivir related compound 5 contains allelopathy, which is the ability to inhibit the growth of other plants by releasing substances from its roots or leaves. A study was conducted in which wheat seeds were treated with extracts of this plant and it was found that there was a significant decrease in the growth of the plants. This may be due to the inhibition of protein synthesis and cell division, as shown in other studies.Fórmula:C21H27N2O7PPureza:Min. 95%Peso molecular:450.42 g/mol2-Deoxy-5-O-toluoyl-D-ribofuranose
CAS:2-Deoxy-5-O-toluoyl-D-ribofuranose is an analytical standard for the determination of purity in drug products. It is also used as a reference compound for HPLC and as a metabolite to study metabolism. This impurity can be synthesized from D-ribose and 2(3,4,5)-O-benzylidenebutyraldehyde.Fórmula:C13H16O5Pureza:Min. 95%Peso molecular:252.26 g/molRemdesivir impurity 8
Remdesivir impurity 8 is a metabolite of remdesivir, a drug product that belongs to the class of synthetic compounds. Remdesivir impurity 8 has been used as a research and development standard for HPLC analysis. It is also used as an impurity standard in pharmacopoeia and drug development. This impurity has shown natural activity in metabolism studies, but it is not known if this activity is due to the compound itself or an artifact from its synthesis.
Fórmula:C30H39N6O8PPureza:Min. 95%Peso molecular:642.64 g/molMethyl 1-C-[4-chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-a-D-glucopyranoside
CAS:Methyl 1-C-[4-chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-alpha-D-glucopyranoside is an impurity of Dapagliflozin.
Fórmula:C22H27ClO7Pureza:Min. 95%Peso molecular:438.9 g/mol1-[2,3-O-Isopropylidene-b-D-ribofuranosyl]-1,2,4-triazole-3-carboxylic acid methyl ester
CAS:1-[2,3-O-Isopropylidene-b-D-ribofuranosyl]-1,2,4-triazole-3-carboxylic acid methyl ester is a synthetic compound that has been shown to inhibit the growth of Mycobacterium tuberculosis in culture. The metabolite is used as an impurity standard for HPLC analysis of this active compound. It has not yet been approved for use as a drug product.
Fórmula:C12H17N3O6Pureza:Min. 95%Peso molecular:299.28 g/molAciclovir EP impurity J
CAS:Aciclovir EP impurity J is a drug product that is used as an analytical standard in HPLC. Aciclovir EP impurity J is the natural metabolite of aciclovir, which is an antiviral drug. It is not active against herpesviruses but has been shown to inhibit the growth of human cells infected with cytomegalovirus. Aciclovir EP impurity J has been studied for its effects on drug metabolism and pharmacokinetics. Aciclovir EP impurity J has been shown to be excreted primarily in urine, with some excretion in the feces.Fórmula:C14H16N10O4Pureza:Min. 95%Peso molecular:388.34 g/molSofosbuvir impurity 3
CAS:Sofosbuvir impurity 3 is a research and development, impurity standard, custom synthesis, drug product, synthetic, high purity, pharmacopoeia, drug development and analytical. Sofosbuvir impurity 3 is a metabolite of sofosbuvir which has been studied in metabolism studies using HPLC. This compound has also been shown to inhibit the growth of some bacteria.Fórmula:C22H29FN3O9PPureza:Min. 95%Peso molecular:529.45 g/mol1'-Epi gemcitabine 3',5'-dibenzoate
CAS:1'-Epi-Gemcitabine 3',5'-dibenzoate is an analytical standard that is used in the drug development process. It is also a high purity, API impurity, HPLC standard, and drug product. 1'-Epi-Gemcitabine 3',5'-dibenzoate is an impurity of Gemcitabine, which is an anticancer drug. The impurity can be found in the methanolic fraction of the extract and it's an epimer of Gemcitabine. The pharmacopoeia for this compound are USP and EP. Custom synthesis and natural or synthetic are possible for this compound.Fórmula:C23H19F2N3O6Pureza:Min. 95 Area-%Cor e Forma:PowderPeso molecular:471.41 g/molAcyclovir EP Impurity Q
Acyclovir EP Impurity Q is a drug product that is used as the impurity standard for Acyclovir EP. It is a natural metabolite of acyclovir and may be found in the urine of patients taking this drug. Acyclovir EP Impurity Q has shown to have antiviral activity against herpes simplex virus type 1 and type 2. The structure of this compound has been determined by nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry.Pureza:Min. 95%Valaciclovir Related Compound E
CAS:Valaciclovir Related Compound E is a white crystalline powder that has an appearance similar to acyclovir, with a melting point of 164-167°C. It is soluble in water and methanol. The compound is used as a medicament and also acts as an intermediate for the synthesis of other pharmaceutical products. Valaciclovir Related Compound E can be synthesized from valaciclovir by reacting it with ethyl chloroformate, followed by recrystallization from pyridine and chloroform. This process produces the desired product in high purity under good yield. Valaciclovir Related Compound E is a white crystalline powder that has an appearance similar to acyclovir, with a melting point of 164-167°C. It is soluble in water and methanol. The compound is used as a medicament and also acts as an intermediate for the synthesis of other pharmaceutical products. ValacFórmula:C21H26N6O6Pureza:Min. 95%Peso molecular:458.47 g/molAdefovir Dipivoxyl Impurity I
CAS:Adefovir Dipivoxyl Impurity I is a white crystalline powder with a melting point of 232–234 °C. It is soluble in water, and insoluble in organic solvents. Adefovir Dipivoxyl Impurity I is used as an impurity standard for Adefovir Dipivoxyl and has been shown to be metabolized by CYP3A4 and UGT1A9. This impurity also has the potential to inhibit DNA synthesis in cells.Fórmula:C21H34N5O9PPureza:Min. 95%Peso molecular:531.5 g/molEmpagliflozin tetraacetate
CAS:Empagliflozin tetraacetate is a drug product that has been manufactured by chemical synthesis. It is a white to off-white crystalline powder with a molecular weight of 597.7 and a purity of 98.2%. Empagliflozin tetraacetate has been formulated as the hydrochloride salt, which is soluble in water and alcohols. The USP/BP/EP specifications for this drug are 5% impurity standard, analytical, API impurity, Synthetic, Metabolism studies, niche, High purity>. This drug product can be used in research and development as well as for manufacturing pharmaceutical products. It is not intended for use in humans or animals.Fórmula:C27H29ClO10Pureza:Min. 95%Peso molecular:548.97 g/molCreatine monohydrate
CAS:Creatine monohydrate powers ATP for short, high-intensity activities in muscles and brain.Fórmula:C4H11N3O3Pureza:99.87%Cor e Forma:White SolidPeso molecular:149.15LY450108
CAS:LY450108 is a potentiator of the AMPA receptor that can be used in Parkinson's disease studies.Fórmula:C19H22F2N2O3SPureza:98.87% - 99.91%Cor e Forma:SolidPeso molecular:396.45

