Nucleosídeos e Nucleotídeos

Stability Moisture Sensitive, Unstable in Solution
Applications 2-Deoxy-3,5-di-O-p-toluoyl-α-L-ribofuranosyl Chloride (cas# 141846-57-3) is a compound useful in organic synthesis.

Applications 2-Hydroxy-2,3-tetrahydrofuranyl Entecavir is an impurity of Entecavir (E558900).

Applications 3-(3-Azido-2,3-dideoxy-β-D-erythro-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione is an impurity of Zidovudine (A825000). Zidovudine is an antiviral agent used in the clinical treatment of HIV infections.
References Radatus, B.K., Org. Process. Res. Dev., 15, 1281 (2011)

Impurity Zidovudine EP Impurity B
Applications 3'-Chloro-3'-deoxythymidine (Zidovudine EP Impurity B) is an impurity of 3'-Azido-3'-deoxythymidine (A825000), a potent and selective inhibitor of HIV-1 replication and a potential antiviral agent.
References Navaneethan, G., et al.: J. Food. Drug Anal., 20, 446 (2012); Srivastav, N.C., et al.: Bioorg. Med. Chem., 18, 7542 (2010); Shakya, N., et al.: J. Med. Chem., 53, 4130 (2010); Fukushima, M., et al.: BIochem. Pharmacol., 59, 1227 (2000);

Applications 5’-O-Benzoyl Ribavirin is an impurity of Ribavirin (R414475). Ribavirin impurity E.
References Zakharieva., et al.: Bioorganic. Medicinal. Chem., 1994, 4, 2831 (1994), Reichard., et al.: The Lancet, 351, 83 (1998),

Stability Hygroscopic
Applications (2'R)​-2'-​Deoxy-​2'-​fluoro-​2'-​methyl-uridine 5'-​Triphosphate Tetrasodium Salt is an impurity of Sofosbuvir (P839640) which is a prodrug that is metabolized to the active antiviral agent 2'-deoxy-2'-α-fluoro-β-C-methyluridine-5'-monophosphate.
References Lam, A.M.,et al.: Antimicrob. Agents. Chemotherapy., 56, 3359 (2012); Lam, A.M., et al.: J. Virol., 85, 12334 (2011); Sofia, M.J., et al.: J. Medn. Chem., 53, 7202 (2010);

Applications 2,5,6-Triamino-4(3H)-pyrimidinone Sulfate is used in the preparation of guanines and other purine derivatives with antiviral activities.
References Hemmati, S. et al.: Int. J. Chem. Sci., 2, 9 (2004); Chetsanga, C.J. et al.: Chem.-Biol. inter., 58, 117 (1986);

Applications Folic acid dihydrate

Applications 6,7-Dimethylpterin, a derivative of Folic Acid (F680300) is used as a biomarker for a non-invasive cancer diagnosis. Also can function as chromophores in light sensitive proteins allowing for analysis of target cells.
References Kritskii, M.S. et al.: Dokl. Akad. Nauk., 380, 408 (2001); Gamagedara, S. et al.: Clin. Chim. Acta., 412, 128 (2011);

Applications Dopamine labeled biotin (LB) was used as a bifunctional compound to mediate the oxidation of β-nicotinamide adenine dinucleotide (NADH).
References Anderson, L., et al.: Clin. Microbiol., 19, 934 (1984), Bayer, E., et al.: Anal. Biochem., 161, 262 (1987), Harmon, F., et al.: J. Biol. Chem., 255, 9458 (1980),

Impurity Lamivudine EP Impurity B
Applications 2’-Epi-Lamivudine (Lamivudine EP Impurity B) is an epimer of Lamivudine (L172500); an antiviral that inhibits HIV-reverse transcriptase.
References Lin, T. et al.: J. Med. Chem., 39, 1757 (1996); Schinazi, R.F. et al.: Antimicrob. Agents Chemother.,36, 672 (1992);