Acides aminés (AA)

Applications L-Aspartyl-L-phenylalanine is an impurity of Thiamine (T344185). Thiamine Impurity B.
References Aluwihare, L., et al.: Science, 308, 1007 (2005), Koch, B., et al.: Anal. Chem., 79, 1758 (2007), Reemtsma, T., et al.: Environ. Sci. Technol., 42, 1430 (2008),

Applications H-Val-Gly-OH (cas# 686-43-1) is a useful research chemical.

Stability Hygroscopic
Applications 4-Methyl-2-oxovaleric Acid is an α-ketomonocarboxylic acid that triggers insulin release by acting upon receptor sites which differ from those occupied by amino acids. 4-Methyl-2-oxovaleric Acid is an intermediate in the metabolism of Leucine.
References Panten, U. et al.: Naun.-Schmied. Arch. Pharmacol., 291, 405 (1975); Vague, P. et al.: Diab. Metab., 1, 185 (1975); Francois, G. et al.: Lancet, 1, 858 (1984);

Stability Hygroscopic
Applications 5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylic Acid Hydrochloride is used as a reagent in the synthesis of N-(2-acylaminobenzyl or 2-acylaminoheterocyclylmethyl)thiophene-2-carboxamide derivatives as antithrombotics. It is also used as a reagent in the synthesis of diamide derivatives as FXa inhibitors. 5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylic Acid Hydrochloride is an intermediate for Edoxaban (E555520).
References Mochizuki, A., et al.: Jpn. Kokai Tokkyo Koho. JP 2010120852 A 20100603. Jun 3, 2010; Mochizuki, A., et al.: PCT Int. Appl. WO 2008123017 A1 20081016. Oct 16, 2008

Applications 2-Methoxyresorcinol (cas# 29267-67-2) is a compound useful in organic synthesis.

Applications Triuret is a byproduct of purine degradation in living organisms. It is a product from the pyrolsis of urea.
References Sergiu P. P., et al:. HHS Public Access, (2010);

Applications L-Theanine-d5 (N-ethyl-d5) (CAS# 1217451-85-8) is the labelled version of L-Theanine (T340500(P)), which is a non-protein amino acid mainly found naturally in the green tea plant. It may have activity in modulating the metabolism of cancer chemotherapeutics agents.
References Yokohoshi, H., et al.: Neurochem Res., 23, 667 (1998), Sugiyama, T., et al.: Clin Cancer Res., 5, 413 (1999)

Applications 1-Ethyl-1-methylcyclopentane, is one of the chemical components of Gas-Phase organic carbon emissions from motor vehicles. It is also a volatile component of frying oils.
References Gentner, D. R., et al.: Environ. Sci. Tech., 47, 11937 (2013); Prevot, A. Frying Food, 155 (1988);

Applications N,O-Dibenzoyl-DL-tyrosyl-N',N'-dipropylamide is a metabolite of the antispasmodic agent Tiropramide (T446900). Tiropramide impurity B.
References Janssen, et al.: J. Pharm. Pharmacol., 9, 381 (1956), Bertaccini, et al.: Br. J. Pharmac., 34, 310 (1968),

Applications Caerulein is a ten amino acid oligopeptide that stimulates smooth muscle and increases digestive secretions. It is similar in action and composition to cholecystokinin. It stimulates gastric, biliary, and pancreatic secretion; and certain smooth muscle. It is used in paralytic ileus and as diagnostic aid in pancreatic malfunction. It is used to induce pancreatitis in experimental animal models.
References Anastasi,E., et al.: Ep., 23, 699 (1997); De Caro, G., et al.: Br. J. Pharmac Chemother., 33, 48 (1968)

Applications 1,3,5-Trichloro-2-methylbenzene can be used as reactant/reagent in hydrodechlorination process and catalysts for the production of 2,​6-​dichlorotoluene from polychlorotoluene-​containing mixtures. Also, it is derived from 2,4,6-Trichlorobenzoic Acid (T774715), which is a possible degradation intermediate of Polychlorinated Biphenyls (PCBs) in contaminated soil, suggesting the occurrence of microbial transformation processes over time.
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 Eichinger, W., et al.: PCT Int. Appl., WO 2001017932 A1 20010315 (2001); Stella, T., et al.: Sci Total Environ, 533, 177-186 (2015)

Impurity Duloxetine EP Impurity B
Applications A Duloxetine intermediate. Duloxetine EP Impurity B.

Applications 4-Amino-N-methyl-α-toluenesulfonamide is an intermediate used in the synthesis of Sumatriptan (S810000).
References Prasad, A., et al.: Eur. J. Med. Chem., 24, 199 (1989), Abdou, N., et al.: J. Pharm. Sci., 6, 25 (1990), Tasaka, A., et al.: Chem. Pharma. Bull., 41, 1035 (1993),

Applications 4-Methylcatechol is a potent inducer of nerve growth factor (NGF) synthesis in vitro and in vivo.
References Kaechi, K., et al.: J. Pharmacol. Exp. Ther., 272, 1300 (1995); Hanaoka, Y., et al.: J. Neurol. Sci., 122, 28 (1994)

Applications 3-Acetyl-2-methylquinoxaline is an intermediate in the synthesis of Desoxyquinocetone which is a metabolite of the veterinay drug Quinocetone.
References Li, Y. et al.: J. AOAC Int., 91, 1494 (2008); Liu, Z.-Y. et al.: Anal. Bioanal. Chem., 396, 1259 (1271);

Applications 8-Bromo-3,9-dihydro-3-methyl-1H-purine-2,6-dione, is a substituted derivative of Xanthine (X499950), found in animal organs, yeast, potatoes, coffee beans, tea. It can also be used for the synthesis of Linagliptin (L465900), which is a novel potent and selective dipeptidyl peptidase-4 (DPP-4) inhibitor with potential use in the treatment of type 2 diabetes.
References Mueller, C. et. al: Handbook Exp. Pharmacol. 200,151(2011); Prabavathy, N. et al.: Int. J. Pharm. Bio. Sci., 2, 438 (2011); Deacon, C.F.: Diab. Obes. Metab., 13, 7 (2011); Mtthias E., et. al: J. Med. Chem., 50, 6450 (2007);

Stability Moisture Sensitive
Applications 4-chloro-5-fluoro-2-methoxypyrimidine (cas# 1801-06-5) is a useful research chemical.

Applications Norvaline, a hydrogen analogs of an amino acid, was found to be racemates from the Murchison meteorite show. Norvaline was used in chiral separation by electrokinetic chromatography.
References Cronin, J., et al.: Science, 275, 951 (1997); Pizzarello, S., et al.: Geochim. Cosmochim. Acta., 64, 329 (2000); Gerabe, S., et al.: J. Chromatogr., 480, 403 (1989);

Stability Temperature Sensitive, Light Sensitive
Applications 2-Ethyl-4-methylpentyl Acrylate

Impurity Repaglinide EP Impurity C/ Repaglinide USP Related Compound A
Applications Repaglinide EP Impurity C

Applications Perfluoro-4-Methoxybutanoic Acid (cas# 863090-89-5) is a useful research chemical.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications 2-(4-Hydroxyphenyl)-3-methyl-1H-indol-5-ol is used as a reagent in the synthesis of tethered indoles as functionalizable ligands for estrogen receptor.
References Trogden, B.G., et al.: Bioorg. Med. Chem. Lett., 19, 485 (2009)

Applications N,N-Dimethylglycine HCl (cas# 2491-06-07) is a useful research chemical.

Applications N-(5-Methyl-3-isoxazolyl)benzenesulfonamide is used in the preparation of isoxazolecarboxylic acid derivatives as agricultural fungicides.
References Gomes, J.R.B., et al.: Tetrahedron, 61, 2705 (2005),

Applications An intermediate used in the synthesis of Pregabalin (P704800) and 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 Posadas, I., et al.: Br. J. Pharmacol., 142, 331 (2004),

Stability Hygroscopic
Applications 3-Methyl-2-oxobutyric acid calcium salt (cas# 51828-94-5) is a useful research chemical.

Applications 4-Hydroxy-3-methylpyridine, is an building block used in the chemical synthesis of various pharmaceutical and biologically active compounds. It is an intermediate for the synthesis of second generation agonist of the orphan G-protein coupled receptor GPR119, for the treatment of diabetes.
References Graeme, S., et al.: Bioorg. Med. Chem. Lett., 22, 1750 (2012);

Applications Cyclic propano guanine adduct DNA acetaldehyde histone.
References Nath, R., et al.: Cancer Res., 58, 581 (1998), Wang, M., et al.: Chem. Res., 13, 1065 (2000), Terashima, I., et al.: Biochemistry, 40, 4106 (2001), Yokoyama, A., et al.: Carcinogenesis, 23, 1851 (2002),

Applications 2-Methyl-4,6-bis(octylsulfanylmethyl)phenol (cas# 110553-27-0) is a useful research chemical.

Applications Labelled Isoferulic Acid 3-O-β-D-Glucuronide, the glucuronide conjugate of Isoferulic Acid (H946180). Isoferulic Acid 3-O-β-D-Glucuronide is one of the circulating metabolites in human plasma after coffee consumption.
References Fumeaux, R. et al.: Org. Biomol. Chem., 8, 5199 (2010); Redeuil, K. et al.: J. Chrom. A, 1218, 4678 (2011);

Impurity Temozolomide USP Related Compound B
Applications N'-Methyl-N,N-diphenylurea is used in the stabilization of thermal propellants. Temozolomide USP Related Compound B.
References Bohn, M. et al.: Prop. Exp. Pyro.,et al.: 19, 266 (1994); Muthurajan, H. et al.: J. Hazard. Mat., 133, 30 (2006);

Applications 2-Cyano-N-methylacetamide is used in the synthesis of pyridone compounds and benzimidazoles, for various pharmaceutical application.
References Mijin, D. et al.: Synth. Comm., 36, 193 (2006); Grimmett, M. et al.: Sci. Synth., 12, 529 (2002); Aggarwal, V. et al.: Synth. 3, 214 (1982);

Applications N-Benzyloxycarbonyl L-Threonine Amide O-Methanesulfonate (cas# 80082-51-5) is a compound useful in organic synthesis.

Stability Very Hygroscopic
Applications A potent inhibitor of NO synthase of adrenal glands, brain, and vascular endothelial cells.
References Vallence, P., et al.: Lancet, 339, 572 (1992),

M03001 - H-Gly-OH

Applications N-Butyl-N-methylnitrosamine, is an nitroso impurity found in “Sartans” , a class of drugs that block the action of angiotensin.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications Ethametsulfuron-methyl Sodium Salt, a regulator of the early steps of complement activation on mucosal surfaces. It can be used in combination treatment of ohmic heating with various essential oil components for inactivation of food-​borne pathogens in buffered peptone water and salsa.
References Kim, S. S., et al.: Food Control, 80, 29 (2017); Reichhardt, M. P., et al.: Front Immunol, 7, 85 (2016)

Applications Labelled analogue of L-Vailne. L-Valine is an essential amino acid and one of 20 proteinogenic amino acids. L-Valine cannot be manufactured by the body and must be acquired through diet or supplementation. L-valine is found in grains, dairy products, mushrooms, meats, peanuts and soy proteins. L-Valine has been used in studies to attenuate arrhythmias and induce hypotensive effects.
References Choi, C.W. et al.: Anim. Feed Sci. Technol., 102, 15 (2002); Kolarski, D. et al.: Krmiva, 30, 155 (1988); Oba, M. et al.: J. Dairy Sci., 93, 2044 (2010); Mitrega, K. et al.: Pharmacol. Res., 64, 218 (2011);

Applications D-LEUCYL-L-TYROSINE (cas# 3303-29-5) is a useful research chemical.

Applications Pipecolic acid is involved in synaptic transmission in the central nervous system.
References Nomura Y., et al.: Neurochem. Res., 6, 391 (1981),

Stability Moisture Sensitive
Applications N-Methyl-1H-imidazole-1-carboxamide is a useful Methyl Isocyanate (MIC) substitute.

Applications N1-(2-AMINOETHYL)-N1-METHYLETHANE-1,2-DIAMINE (cas# 4097-88-5) is a useful research chemical.

Applications 2-amino-5-methylhexanoic acid (cas# 3558-32-5) is a useful research chemical.

Stability Hygroscopic
Applications Used in peptide N-terminal amino acid determination.
References Prota, G., et al.: Biochimie, 53, 51 (1971),

Applications N-[(Benzyloxy)carbonyl]glycylglycine is a reagent in the synthesis of Glycylglycyl-L-tyrosine (G718500), which is a fungal tyrosinases and their capability to oxidize peptide-bound tyrosine residues is important in a view of applicability of tyrosinases.
References Bowness, J., et al.: Biochem. J., 53, 620 (1953), Cuff, M., et al.: J. Mol. Biol., 278, 855 (1998), Kubo, I., et al.: Bioorg. Med. Chem., 12, 5349 (2004),

Stability Very Volatile
Applications 3-Methylfuran is a volatile organic compound (VOCs) used as a potential non-intrusive tool for screening of lung cancer.
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 McWilliams, et al.: Curr. Oncol. Rep., 4, 487 (2002), Buszewski, B., et al.: Biomed. Chromatogr., 21, 553 (2007), Ligor, T., et al.: J. Breath. Res., 1, 1 (2007),

Applications L-3-Benzothienylalanine

Applications A derivative of imidazole used in the synthesis of heteroxanthine.
References Sarasin, J., et al.: Helv. Chim. Acta, 7, 713 (1924),

Applications 2-Methyl-7-methylamino-8-nitro-quinoxaline (cas# 78411-55-9) is a compound useful in organic synthesis.

Applications 2-Methyl-5-nitroaniline is used as a reagent in the synthesis of imatinib base derivatives which show antibacterial and antifungal activity. Also used as a reagent in the synthesis of pyrimidinylaminobenzene derivatives which exhibit antiproliferative activity against melanoma. Dyes and metabolites, Environmental Testing. It is a COVID19-related research product.
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 Patoliya, M.J., et al.: J. Chem., no vol., no pp. (2013); Kim, H.J., et al.: B. Korean Chem. Soc., 34, 2311 (2013)

Applications Labelled 1-Methyl-2-pyrrolidinone (M326120). It is a versatile industrial solvent. NMP is currently approved for use only in veterinary pharmaceuticals. The determination of the disposition and metabolism of NMP in the rat will contribute toward understanding the toxicology of this exogenous chemical which man may likely be exposed to in increasing amounts.
References Southwell, D., et al.: J. Pharm. Pharmacol., 33, 3 (1981), Barry, W., et al.: J. Invest. Dermatol., 82, 49 (1984),

Applications 5-((2-Hydroxyethyl)amino)-2-methylphenol (cas# 55302-96-0) is a useful research chemical.

Stability Volatile
Applications 2-Chloro-2-Methylpentane (cas# 4325-48-8) is a useful research chemical.

Applications Intermediate in the production of anti-cancer quinoline derivatives and antibacterial agents
References Zhao, H., et al.: Bioorg. Med. Chem. Lett., 12, 3105 (2002),

Impurity Ranitidine EP Impurity H
Applications N-Methylnitroacetamide (Ranitidine EP Impurity H) is a degradation product of Ranitidine (R120000).
References Sharma, N. et al.: Sci. Pharmac., 79, 309 (2011); Haywood, P.A. et al.: J. Chem. Soc., 5, 951 (1987);