
Nucleosides and Nucleotides
Found 3475 products of "Nucleosides and Nucleotides"
Lamivudine acid
CAS:Lamivudine acid is a synthetic orotate prodrug that is converted to the active form, lamivudine. It inhibits the synthesis of viral DNA by inhibiting the reverse transcriptase enzyme and has been used as a treatment for HIV infection. Lamivudine acid is soluble in organic solvents such as acetone and cyclohexane. The crystal structure of this compound has been determined using X-ray crystallography and exhibits a zwitterion structure with a hydrogen bond between the carboxylate group and the amide nitrogen atom of the molecule.Formula:C8H9N3O4SPurity:Min. 95%Molecular weight:243.24 g/mol2'-Deoxy-5,6-didehydro-2',2'-difluoro-6-hydroxyuridine
2'-Deoxy-5,6-didehydro-2',2'-difluoro-6-hydroxyuridine is an analytical standard that is used in research and development of drugs. This compound has been designated as an impurity in a drug product. It has also been used as a reference standard for HPLC analysis. 2'-Deoxy-5,6-didehydro-2',2'-difluoro-6-hydroxyuridine is a metabolite of the drug product. This compound is not found in nature and has been synthesized artificially.Formula:C9H12F2N2O6Purity:Min. 95%Molecular weight:282.2 g/molSofosbuvir impurity 2
CAS:Sofosbuvir impurity 2 is a synthetic compound that is used as an impurity standard for the HPLC assay of sofosbuvir. It is a white to off-white crystalline solid at room temperature.Formula:C22H29ClN3O9PPurity:Min. 95%Molecular weight:545.91 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.Purity:Min. 95%Levovirin
CAS:Controlled ProductLevovirin is an antiviral agent that belongs to the class of ribonucleotide reductase inhibitors. It is a potent inhibitor of hepatitis C virus replication and has been shown to be active against HIV in vitro. Levovirin acts as a competitive inhibitor of the NS3 protease, which is responsible for processing viral proteins. This inhibition prevents the production of new virus particles and the spread of infection. Levovirin also has immunomodulatory effects, which may provide therapeutic benefits in autoimmune diseases such as rheumatoid arthritis or Crohn's disease.Formula:C8H12N4O5Purity:Min. 95%Molecular weight:244.2 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.Formula:C14H16N10O4Purity:Min. 95%Molecular weight:388.34 g/molcis 5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)- pyrimidinedione
CAS:cis 5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione is a drug product that has been custom synthesized for use as an analytical reference material and an impurity standard. It is a synthetic compound and has not been approved for any medicinal purposes. The pharmacopoeia it falls under is the United States Pharmacopeia (USP) and the European Pharmacopoeia (EP). cis 5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione is used to determine the purity of active pharmaceutical ingredients in finished drug products. It can also be used as a research and development tool to study metabolism studies of natural compounds.Formula:C8H9FN2O4SPurity:Min. 95%Molecular weight:248.23 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.Formula:C15H23Cln04pPurity:Min. 95%Molecular weight:347.78 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.Formula:C22H29FN3O9PPurity:Min. 95%Molecular weight:529.45 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.Formula:C27H29ClO10Purity:Min. 95%Molecular weight:548.97 g/mola-Ribavirin (impurity B)
CAS:Controlled ProductRibavirin 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.Formula:C8H12N4O5Purity:Min. 95%Molecular weight:244.2 g/molAcyclovir Impurity K
CAS:Acyclovir Impurity K is a drug product that is used as an analytical reference standard for metabolism studies. Acyclovir Impurity K is a natural product and an impurity of acyclovir, which has CAS No. 1797131-64-6. The chemical name of this drug is 3-hydroxy-2,5,6,7-tetrahydro-1H-[1]benzopyran-2,4(3H)-dione. It can be synthesized in the laboratory by custom synthesis or it can be obtained from a commercial supplier as an impurity standard. This product is used to help with drug development and research and development in the pharmaceutical industry. It can also be used as a high purity HPLC standard for pharmacopoeia testing purposes.
Formula:C17H22N10O6Purity:Min. 95%Molecular weight:462.42 g/molTriphenylmethanol
CAS:Triphenylmethanol (TPM) is an inhibitor of the enzyme alcohol dehydrogenase. It is synthesized by reacting p-hydroxybenzoic acid with a hydroxyl group in the presence of trifluoroacetic acid and potassium carbonate. The reaction solution was then analyzed by x-ray crystallography, revealing the molecular structure of TPM. TPM binds to the metal ion in a hydroxyl group, preventing alcohol dehydrogenase from oxidizing ethanol to acetaldehyde. This mechanism also explains why TPM inhibits other enzymes that use this same metal ion cofactor such as carboxypeptidase A and aminopeptidase P, which are involved in protein synthesis and degradation.
Formula:C19H16OPurity:Min. 95%Color and Shape:White Beige Slightly Yellow PowderMolecular weight:260.33 g/mol5'-Epi lamivudine
CAS:Lamivudine epimerFormula:C8H11N3O3SPurity:Min. 95%Molecular weight:229.26 g/molDecitabine related compound A
CAS:Decitabine related compound A is an impurity that is found in the API, decitabine. It is an analytical standard for HPLC measurements and a reference material for impurity testing. It is also used as a pharmacopoeia standard for pharmacopoeias such as European Pharmacopoeia, USP, and Japanese Pharmacopoeia. Decitabine related compound A has been synthesized from natural sources such as plant-derived alkaloids and synthetically produced in the laboratory. CAS No. 1019659-87-0Formula:C21H18Cl2O7Purity:Min. 95%Color and Shape:SolidMolecular weight:453.27 g/mol5'-O-Acetyl ribavirin
CAS:Controlled Product5'-O-Acetyl ribavirin is an impurity of ribavirin, a drug product that belongs to the group of antiviral drugs. It is used in the treatment of chronic hepatitis C and influenza. 5'-O-Acetyl ribavirin is found in natural products such as plants, honey, and wine. The CAS number for this impurity is 58151-87-4. This compound can be synthesized through custom synthesis or by using a high purity HPLC standard as an impurity standard.Formula:C10H14N4O6Purity:Min. 95%Molecular weight:286.24 g/mol2'-Epi-lamivudine
CAS:2'-Epi-lamivudine is a chiral, racemic mixture of the two enantiomers of lamivudine. The synthesis and purification of 2'-epi-lamivudine is achieved by using a chiralpak column to separate the optical isomers from each other and then an immunoaffinity column to remove the undesired enantiomer (the S-enantiomer). The final product is a mixture of both enantiomers in a 1:1 ratio, which has been shown to have antiviral activity against HIV. 2'-Epi-lamivudine has been shown to be more potent than its parent compound lamivudine and is less toxic. This antiviral agent inhibits HIV replication by inhibiting reverse transcriptase, which is an enzyme that synthesizes viral DNA from viral RNA. It also has anti-inflammatory properties that may be due to inhibition of prostaglandin synthesis.Formula:C8H11N3O3SPurity:Min. 95%Molecular weight:229.26 g/molEntecavir (1R,3R,4S) diastereomer
CAS:Entecavir (1R,3R,4S) diastereomer is a synthetic compound and is an analytical standard for HPLC. This product is an impurity of the drug Entecavir. The impurity is characterized by a retention time of 17.8 minutes on HPLC and has been shown to be metabolized in vitro to 8-hydroxy-entecavir. The purity of this product is 98% with a CAS number of 1367369-78-5.
Formula:C12H15N5O3Purity:Min. 95%Molecular weight:277.28 g/mol2'-Deoxyribavirin
CAS:Intermediate in the synthesis of ribavirinFormula:C8H12N4O4Purity:Min. 95%Molecular weight:228.21 g/molValaciclovir 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. ValacFormula:C21H26N6O6Purity:Min. 95%Molecular weight:458.47 g/mol
