Nucleosides and Nucleotides

Applications Gemcitabine intermediate.
References Balzarini, J., et al.: Biochem. Pharmacol., 1988, 37, 2847 (1988), Hertel, L., et al.: Cancer Res., 50, 4417 (1990), Marquez, V., et al.: J. Med. Chem., 33, 978 (1990),

Impurity Ganciclovir EP Impurity A
Applications 9-[[2-chloroprop-2-en-1-yl)oxy]methyl]guanine (Ganciclovir EP Impurity A) is an impurity of Ganciclovir (G235000).

Applications 5-Azacytidine 2’,3’5’-O-triacetate is a useful compound for the treatment and prevention of cancer and disorders related to abnormal cell proliferation, hematological disorders, and myelodysplastic syndromes (MDS). It can be also used to synthesize 2'3'5'triacetyl-5-azacytidine which is a prodrug for azacitidine. Azacitidine is a FDA-appproved DNA metnyltransferase (DNMT) inhibitor.
References Rajendiran, C., et al.: PCT Int. Appl. WO 2012135405 A1 20121004 (2012); Ziemba, A., et al.: Chemother Res Pract 965826, 9 (2011); Beisler, J. A., et al.: J. Carbohyd. Chem 4, 281 (1977)

Impurity Emtricitabine Carboxylic Acid Impurity
Applications Emtricitabine Carboxylic Acid is an impurity of the antiviral agent Emtricitabine (E525035).
References Pendela, M. et al.: Talanta, 82, 125 (2010);

Applications Second generation purine nucleoside analog; antimetabolite that inhibits DNA synthesis and resists deamination by adenosine deaminase. Antineoplastic.
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 Gandhi, V., et al.: Clin. Cancer Res., 9, 6335 (2003), Kantarjian, H., et al.: Blood, 102, 2379 (2003), Faderl, S., et al.: Cancer, 103, 1985 (2005),

Stability Moisture Sensitive
Applications Adenosine 5’-Diphosphate-13C5 Ammonium Salt Hydrate is the isotope labelled analog of Adenosine 5’-Diphosphate Ammonium Salt Hydrate (A281700); a nucleoside diphosphate that interacts with a family of ADP receptors found on platelets (P2Y1, P2Y12 and P2X1), to induce platelet activation. ADP in the blood is converted to adenosine by the action of ecto-ADPases, inhibiting further platelet activation via adenosine receptors.
References Gamba, G. et al.: Haematologia, 58, 1215 (1973); Dejana, E. et al.: Thromb. Haemost., 39, 135 (1978)

Stability Moisture Sensitive
Applications 2,3-Dichloropropionyl Chloride is used as a reagent in the synthesis of 6-chloro-5-cyclohexyl-1-indancarboxylic acid, a potent analgesic, antipyretic, and antiinflammatory agent, and its related compounds.
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 Sawa, Y., et al.: Yakugaku Zasshi, 96, 653 (1976)

Stability Moisture Sensitive
Applications 1,2-bis(Chloromethoxy)ethane is a carcinogenic compound.
References Kar, S., Roy, K.: Chemoshpere, 87, 339 (2012)

Applications Labelled Uridine, a nucleoside; widely distributed in nature. Uridine is one of the four basic components of ribonucleic acid (RNA)
References Lorine, P., et al.: J. Biol. Chem., 178, 439 (1949); Grakoui, A., et al.: J. Virol., 63, 5216 (1989); Strauss, J., et al.: Microbiol. Rev., 58, 491 (1994); Lin, Y., et al.: Virology, 292, 78 (2002);

Impurity Valaciclovir EP Impurity P
Stability Light Sensitive, Temperature Sensitive
Applications Bis Valacyclovir (~90%) (Valaciclovir EP Impurity P) is an impurity is listed in Ph. Eur. monograph for Valaciclovir HCl as impurity P and Bis-valaciclovir in USP monograph (impurity K).

Applications An irreversible inhibitor of the mammalian DNA repair protein, O6-alkylguanine-DNA alkyltransferase. Assists in the protection against carcinogenic and therapeutic alkylating agents.
References Dolan, M.E., et al.: Proc. Natl. Acad. Sci. USA, 87, 5356 (1990), Goodtzova, K., et al.: Biochemistry, 33, 385 (1994), Elder, R.H., et al.: Biochem. J., 298, 231 (1994)

Applications Methyl 4-Chlorobenzoate is a reactant used in the synthesis of ataxia-telangiectasia mutated (ATM) kinase, a target for novel radiosensitizing agents. As well, used as a reactant in the synthesis of aminopyridine functionalized polyacrylonitrile fibers.
References Min, J. et al.: J. Med. Chem., 59, 559 (2016);

Applications Labelled Azathioprine (A803350). An immunosuppressive antimetabolite. Also active as disease modifying antirheumatic drug (DMARD).
References Mitrou, P.S., et al.: Arzneim.-Forsch., 29, 483, 662 (1979), Ding, T.L., et al.: Drug. Metab. Dispos., 7, 373 (1979), Chan, G.L.C., et al.: Pharmacotherapy, 7, 165 (1987), Sandborn, W.J., et al.: : Scand. J. Gastroenterol., 33, Suppl. 225, 92 (1998,)

Applications 5-O-Trityl-2,3’-anhydrothymidine (cas# 25442-42-6) is a compound useful in organic synthesis.

Applications A labelled metabolite of Capecitabine.
References Arellano, M., ET AL.: Br. J. Cancer, 77, 79 (1998), Budman, D., ET AL.: J. Clin. Oncol., 16, 1795 (1998), Khanna, R., et al.: Cancer Res., 60, 4725 (2000), Charasson, V., et al.: Drug Metab. Dispos., 30, 731 (2002),

Impurity Entecavir EP Impurity D
Applications 4’-epi-Entecavir is an epimeric impurity of the antiviral drug Entecavir (E558900).

Stability Moisture Sensitive
Applications Cytidine 5'-diphosphocholine (cas# 987-78-0) is a useful research chemical.