Nucleosides and Nucleotides

Stability Hygroscopic
Applications Decarboxylated S-Adenosylmethionine Sulfate Salt, is a substrate that is involved in the biosynthesis of polyamines including spermidine, spermine, and thermospermine.
References Takahashi,T., et al.: Ann. Bot., 105, 1 (2009); Wu, H., et al.: Biochem., 46, 8331 (2007); Pegg, A., et al.: Biochem., 28, 8446 (1989);

Applications Ammeline is a metabolite of Melamine (1) (M208700), which acts as a non-protein nitrogen food additive (2). Also present in pet foods as well (3).Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA). Environmental contaminants; Food contaminants.
References 1. Mast RW. et al.: Food Chem Toxicol. 1983 Dec;21(6):807-10.2. Ehling S. et al.: Food Addit Contam. 2007 Dec;24(12):1319-25.3. Vail T. et al.: J Anal Toxicol. 2007 Jul-Aug;31(6):304-12.

Stability Hygroscopic
Applications A cofactor in enzymatic acetyl transfer reactions. It is the source of the phosphopantetheine group that is added as a prosthetic group to proteins such as acyl carrier protein and formyltetrahydrofolate dehydrogenase.
References Strickland K.C. et al.: J. Biol. Chem., 285, 1627 (2010); Elovson J. et al.: J. Biol. Chem., 243, 3603 (1968);

Stability Hygroscopic
Applications Isotope labelled analogue of (-)-Inosine (I661000), compound that exhibits neuroprotective properties by improving axonal wiring and has also been used to treat stroke patients to restore neural function.
References Vandemeulebroucke, A., et al.: Biochem., 49, 8999 (2010), Nestor, G., et al.: J. Agric. Food Chem., 58, 10799 (2010),

Impurity Cytarabine EP Impurity A
Applications Antiviral agent. Used for the treatment of severe acute respiratory syndrome (SARS).
References Weber, G., et al.: Cancer Res., 43, 3466 (1983), Broet, P., et al.: J. Clin. Oncol., 19, 2778 (2001), Galmarini, C., et al.: Leukemia, 15, 875 (2001), Barth, R., et al.: Cancer Res., 64, 6287 (2004), Song, M., et al.: Bioorg. Med. Chem., 12, 489 (2004),

Stability Hygroscopic
Applications Emtricitabine Triphosphate Triethylammonium Salt is a metabolite of (-)-Emtricitabine (E525000).
References Barditch-Crovo, P., et al.: Antimicrob. Agents Chemother., 45, 2733 (2001); Ray, A., et al.: Antivir .Ther., 10, 451 (2005); Borroto-Esoda, K., et al.: Antivir. Ther., 11, 377 (2006)

Impurity Aciclovir EP Impurity J
Applications O-(Guanin-9-yl)methyl Acyclovir (Aciclovir EP Impurity J) is a dimer impurity of the antiviral agent Acyclovir (A192400).
References Ashton, D.S. et al.: J. Chrom. A, 707, 367 (1995);

Applications 6-Hydroxy-2,4,5-triaminopyrimidine, Sulfate (cas# 35011-47-3) is a compound useful in organic synthesis.

Applications Isotope labelled analogue of Adenosine 5’-Monophosphate (A281790), a nucleotide that is used as a monomer in RNA.
References Watanabe, M., et al.: Arch. Dermatol., 127, 1689 (1991); Engelke, M., et al.: Br. J. Dermatol., 137, 219 (1997)

Stability Hygroscopic
Applications Labelled Biopterin. A pteridine widely distributed in nature; naturally occurring as the L-erythro-form. Considered as a growth factor for some insects. Fluoresces with a blue color in alkaline solution.
References Klatt, P., et al.: J. Biol. Chem., 269, 13861 (1994), Mitnaul, L., et al.: Biochemistry, 92, 885 (1995), Thony, B., et al.: Biochem. J., 347, 1 (2000),

Stability Hygroscopic
Applications Has neuroprotective properties improving axonal wiring. Has been used to treat stroke patients to restore neural function. Neuroprotective product.
References Vandemeulebroucke, A., et al.: Biochem., 49, 8999 (2010), Nestor, G., et al.: J. Agric. Food Chem., 58, 10799 (2010),

Stability Hygroscopic
Applications Cytidine 2':3'-cyclic Monophosphate Monosodium Salt is a key compound in the enzymic synthesis of short oligoribonucleotides. Reagent in the amine catalyzed solid-phase synthesis of oligonucleotides.
References Gusenkova, N. M., et al.: Zhurnal Obshchei Khimii, 46, 939 (1976); Tomasz, J., et al.: Nucleic Acid Chem., 2, 875 (1978)

Impurity Azacitidine USP Related Compound C
Stability Hygroscopic
Applications 1-(Diaminomethylene)-3-β-D-ribofuranosyl-urea Picrate is a related compound of Azacitidine, a DNA metnyltransferase (DNMT) inhibitor for treating myelodysplastic syndromes (MDS).
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 Valaciclovir EP Impurity M
Applications N-Formyl Valacyclovir (Valaciclovir EP Impurity M) Valacyclovir (V085000) impurity.
References Furman, P., et al.: Antimicrob. Agents Chemother., 20, 518 (1981),

Impurity USP Capecitabine Related Compound B
Applications 5’-Deoxy-5-fluorouridine is a metabolite of the chemotherapeutic agent Capecitabine (C175650). 5’-Deoxy-5-fluorouridine is an antitumor agent efficient in tumors, cell lines or in fibroblasts tranformed by H-ras or trk oncogenes.
References Ingle, J., et al.: Cancer, 67, 886 (1991); Harvey, J., et al.: J. Clin. Oncol., 17, 1474 (1999); Asai-Sato, M., et al.: Int. J. Cancer, 115, 539 (2005); Rastelli, F., et al.: Tumori, 94, 370 (2008);

Applications Acetyl Vitamin B12 is a derivative of Vitamin B12 (V676020). Vitamin B12 gets converted by the body into its bioactive forms, methylcobalamin and cobamamide, which serve as enzyme cofactors. Severe deficiency may result in megaloblastic anemia and/or neurological impairment.
References Rickes, et al.: Science, 107, 396 (1948); Kirschbaum, J., et al.: Anal. Profiles Drug Subs., 10, 183 (1981); Grasbeck, R., et al.: Clin. Biochem., 17, 99 (1984)

Applications Labelled 5-FU, a potent antineoplastic agent in clinical use. Also an inhibitor of DNA synthesis.
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 Rudy, B.C., et al.: Anal. Profiles Drug Subs., 2, 221 (1973), Miyashita, O., et al.: Chem. Pharm. Bull., 29, 3181 (1981), Hansen, R.M., et al.: Cancer Invest., 9, 637 (1991),