Acides aminés (AA)

Stability Hygroscopic
Applications 3-Hydroxy-DL-kynurenine is a tryptophan metabolite. Could be associated with symptoms in Parkinson's disease.
References Heilman, P. L., et al.: Movement Disorders, 35, 2028 (2020)

Applications A well-known, highly active stimulant of cell divisions in plant tissue cultures.
References D.S. Letham: Phytochemistry, 12, 2445 (1973)

Applications α-Methylglyceric Acid is a biogenic secondary organic aerosol used in air quality diagnosis.
References Ru, P., et. al.: Environ. Sci. Technol., 48, 8491 (2014); Napelenok, S.L., et. al.: Environ. Sci. Technol., 48, 464 (2014); Stone, E.A., et. al.: Environ. Chem., 9, 263 (2012)

Applications Isotope labelled N-Isovalerylglycine is a useful diagnostic tool in the diagnosis of many organic acidemias and mitochondrial fatty acid β-oxidation defects. N-Isovalerylglycine is found in the urine of patients with isovaleric acidemia, an inborn error of leucine metabolism.
References Tanaka, K. et al.: J. Biol. Chem., 242, 2966 (1967); Bonafe, L. et al.: Mol. Gen. Metab., 69, 311 (2000);

Applications 2-Furoylglycine is an intermediate used to prepare non-nucleoside inhibitors of HCV NS5b RNA polymerase. It is also used in the synthesis of benzimidazolylazabicyclooctylethylpiperidines as Ccr5 antagonists for the treatment of HIV infection.
References Antonysamy, S., et al.: Bioorg. Med. Chem. Lett., 18, 2990 (2008); Kazmierski, W., et al.: PCT Int. Appl. (2004), WO 2004054974 A2 20040701

Stability Hygroscopic
Applications Labelled 3-Aminoisobutyric Acid (A611585). Substituted β-alanines. Used for preparation and isolation of D(-)-β-aminoisobutyric acid.
References Kakimoto, Y., et al.: J. Biol. Chem., 236, 3288 (1961),

Applications A metabolite of Crotonaldehyde.
References Gray, J.M., et al.: Xenobiotica, 1, 55 (1971), Chung, F., et al.: Mutat. Res., 424, 71 (1999), Smith, C., et al.: Food Chem. Toxicol., 38, 637 (2000), Pan, J., et al.: Chem. Res. Toxicol., 15, 367 (2002),

Applications N-Carbamyl-L-glutamic Acid has been shown to have protective effects against ammonia intoxication and is used in the treatment of acute hyperammonemia.
References Paik, W.K. et al.: Life Sci., 15, 1189 (1974); O'Connor, J.E. et al.: Eur. J. Pediat., 148, 540 (1989); Lee, J.H. et al.: Biochem. Biophys. Res. Chem., 248, 391 (1998);

Applications The main metabolite of o-xylene.
References Gregus, Z., et al.: Drug Metab. Dispos., 26, 1082 (1998), Gregus, Z., et al.: Xenobiotica, 29, 547 (1999), Gonzalez-Reche, L., et al.: Arch. Toxicol., 77, 80 (2003),

Applications 1-AMINO-2-METHYLNAPHTHALENE (cas# 2246-44-8) is a useful research chemical.

Stability Hygroscopic
Applications 3-Indolepropionic-d2 acid is deuterium labelled 3-Indolepropionic acid (I627170). 3-Indolepropionic acid is a deamination product of Tryptophan (T947200) that protects the hippocampus (studied in gerbils) from ischemic damage and oxidative stress. It’s ability to protect the neurons in this way is attributed to its potent antioxidative effects. 3-Indolepropionic acid is also hypothesized to have protective effects on the thyroid gland.
References Hwang, I., et al.: J. Neurosci. Res., 87, 2126 (2009); Karbownik, M., et al.: J. Cell. Biochem., 95, 131 (2005)

Applications N-Boc-4-hydroxypiperidine is a 4-hydroxypyridine with a boc protecting group used in the preparation of neurologically active agents and other pharmaceutical compounds.
References Kwon, Y.E. et al.: Bioorg. Med. Chem., 15, 6596 (2007); Knutsen, L.J.S. et al.: J. Med. Chem., 42, 3463 (1999);

Impurity Iohexol EP Impurity K
Applications 5-Amino-2,4,6-triiodoisophthalic Acid (Iohexol EP Impurity K) is an intermediate for nonionic iodinated X-ray contrast agents.

Applications 3-Mercapto-3-methylbutanoic Acid Ethyl Ester is an intermediate in the synthesis of 3-Mercapto-3-methylbutyl Formate (M253540), which is one of the major odor-active thiol in pan-roasted white sesame seeds.
References Czerny, M., et al.: J .Agric. Food Chem., 47, 695 (1999), Steinhaus, M., et al.: Eur. Food Res. Technol., 226, 45 (2007), Tamura, H., et al.: Agric. Food Chem., 2010, 58, 7368 (2010),

Applications Ethyl 2-(4-Hydroxyphenyl)-4-methylthiazole-5-carboxylate is used in the synthesis of the major metabolites of Febuxostat (F229000), a xanthine oxidase/xanthine dehydrogenase inhibitor. Used for treatment of hyperuricemia and chronic gout. 40-120 mg/day febuxostat was proven effective in lowering serum urate levels when administered to manage hyperuricemia in patients with gout.
References Li, X., et. al.: Lett. Org. Chem., 12, 217 (2015); Vallu, V., et. al.: Anal. Chem. Indian J., 14, 339 (2014); Osada, Y., et al.: Eur. J. Pharmacol., 241, 183 (1993); Okamoto, K., et al.: J. Biol. Chem., 278, 1848 (2003); Mayer, M.D., et al.: Am. J. Therap., 12, 22 (2005); Tomlinson, B., et al.: Curr. Opin. Invest. Drugs, 6, 1168 (2005)

Stability Hygroscopic
Applications 1-(2-Methoxyphenyl)piperazine Hydrobromide is a useful reagent for improving the synthesis of Eapidil.
References Wang, H., et al.: Anhui Huagong, 37, 23 (2011)

Applications Ac-Glu-OMe (cas# 17015-15-5) is a useful research chemical.

Applications (S)-2-Amino-4-methylpentanol is a starting material for the synthesis of aminopeptidase N and phospholipase A2 inhibitors.
References Fournié-Zaluski, M., et al.: J. Med. Chem., 35, 1259 (1992); Bennion, C., et al.: J. Med. Chem., 35, 2939 (1992)

Applications D-Cysteine Hydrochloride Monohydrate is used as a reactant in the expedient synthesis of electronically modified luciferins for bioluminescence imaging.
References McCutcheon, D., et al.: J. Am. Chem. Soc., 134, 7604 (2012);

Stability Light Sensitive
Applications 6-Methoxy-2-naphthol is a reactant in the development of sirtuin inhibitors from pyrazolone and isoxazol-5-one cambinol analogs.
References Mahajan, S.S., et. al.: J. Med. Chem., 57, 3283 (2014)

Impurity Flumazenil EP Impurity E
Applications Ethyl 5-Methyl-6-oxo-5,6-dihydro-4H-benzo[f]imidazo[1,5-a][1,4]diazepine-3-carboxylate (Flumazenil EP Impurity E) is used in the biological studies and preparation of imidazobenzodiazepines as probes for diazepaminsensitive receptor pharmacophore.
References Zhang, P., et al.: J. Med. Chem., 38, 1679 (1995)

Applications 4-Methyl-2-pentanol is used in the synthesis of 4-quinolone derivatives as high-affinity ligands for the brain GABAA receptors. Also used in the preparation of antimycotic imadazoles, as antifungals.
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 Lager, E. et al.: J. Med. Chem., 49, 2526 (2006); Heeres, J. et al.: J. Med. Chem., 22, 1003 (1979);

Applications 3-(difluoromethyl)-1-methyl-1h-pyrazole-4-carboxylic Acid (cas# 176969-34-9) is a useful research chemical.

Stability Hygroscopic
Applications A metabolite of Catecholamines.
References Kopin, I.J., et al.: J. Biol. Chem., 236, 2109 (1961), Short, F.W., et al.: J. Med. Pharm. Chem., 5, 642 (1962)

Applications 5-Hydroxy-2-methyl-1H-imidazole-1-ethanol is a degradation product of Metronidazole (M338880), an antibiotic.
References Perez, Tzayam, et al.: Electrochimica Acta, 165, 173-181 (2015)

Applications Fmoc-L-cysteic acid (cas# 751470-47-0) is a useful research chemical for organic synthesis and other chemical processes.
References Dialer, L. O., et al.: J. Med. Chem., 56, 7552 (2013); Revell, J. D., et al.: Tetrahedron, 63, 8420, (2007)

Applications Labelled Cytidine derivative.
References Ueda, T., et al.: Chem. Pharmaceut. Bull., 22, 2377 (1974),

Applications 2-Amino-5-cyano-3-methylbenzoic Acid (cas# 871239-18-8) is a useful research chemical.

Applications L-Carnitine-d9 is the isotope labelled analog of L-Carnitine (C184110); an essential cofactor of fatty acid metabolism; required for the transport of fatty acids through the inner mitochondrial membrane. Synthesized primarily in the liver and kidney; highest concentrations found in heart and skeletal muscle. Dietary sources include red meat, dairy products, beans, avocado.
References Mitchell, M.E., et al.: Am. J. Clin. Nutr., 31, 293 (1978); Lango, R., et al.: Cardiovasc. Res., 51, 21 (2001); Vaz, F.M., et al.: Biochem. J., et al.: 361, 417 (2002); Karlic, H., et al.: Nutrition, 20, 709 (2004)

Applications L-Methionine-13C5 is the isotope labelled analog of L-Methionine, which is an essential aminoacid for human development. Hepatoprotectant; antidote (acetominophen poisoning); urinary acidifier.
References Benevenga, N.J., et al.: J. Agric. Food Chem., 22, 2 (1974), Fleisher, L.D., et al.: Clin. Endocrinol. Metab., 3, 37 (1974), Meinnel, T., et al.: Biochimie, 75, 1061 (1993),

Applications 4-Methyl-d3-catechol (CAS# 83719-41-9) is a useful isotopically labeled research compound.