Acides aminés (AA)

Applications 2-Methyl-1-phenyl-1-propene can be used in analytical study of analysis and comparison of aroma compounds from traditional Tangshan sorghum liquor and samples of improved fermentation process by GC-​MS.
References Jiang, X., et al.: Shipin Gongye Keji, 37, 87 (2016)

Applications 6-Chloro-2-methoxy-7-deazapurine (cas# 90057-08-2) is a compound useful in organic synthesis.

Applications A precursor to 3-Methyl-2-butenyl-1-thiol which is very unstable. We will provide a detailed procedure for the preparation of the thiol from the thiolacetate with spectral data upon request.
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-Amino-3-methylpyridine is used in the synthesis of ketones from aldehydes.
References Jun, C. et al.: J. Org. Chem., 62, 1200 (1997); Jun, C. et al.: Angew. Chem. Int. Ed., 37, 145 (1998);

Applications Pteroyltri-γ-L-glutamic acid is a folate derivative found in various foods such as yeast, spinach, beef liver, beef fillet and peas.
References Tamura, T., et al.: Br. J. Haematol., 25, 513 (1973); Ndaw, S., et al.: J. Chromatogr. A, 928, 77 (2001)

Stability Hygroscopic
Applications L-3-(4-Hydroxy-3-methoxy-d3-phenyl)alanine (CAS# 586954-09-8) is a useful isotopically labeled research compound.

Applications 2-Methylenecyclopropaneacetic Acid is an intermediate in the preparation of novel agents for the therapy of non-insulin dependent diabetes mellitus.
References Bell, P., et al.: Bioorg. Med. Chem. Lett., 3, 1007 (1993);

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

Applications (±)-2-Methyl-d3-succinic-2,3,3-d3 Acid (CAS# 347840-08-8) is a useful isotopically labeled research compound.

Applications 3-Methylbutyl Acetate-d3 (CAS# 1219804-75-7) is a useful isotopically labeled research compound.

Applications 3-Methylbutyric-2,2-d2 Acid (CAS# 95927-02-9) is a useful isotopically labeled research compound.

Applications (4R,6S)-rel-5,6-Dihydro-4-hydroxy-6-methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-Dioxide is used as a reactant in the preparation of Dorzolamide Hydrochloride (D535100), which is a carbonic anhydrase inhibitor; antiglaucoma agent.
References Lippa, E.A., et al.: Ophthalmology, 98, 308 (1991); Wang, R.-F., et al.: Arch. Ophthalmol., 109, 1297 (1991); Whikehart, D., et al.: J. Ocul. Pharmacol., 7, 195 (1991); Sjoquist, B., et al.: Drug Metab. Dispos., 26, 745 (1998);

Applications 1-Methoxy-2-propanol is used as a reagent in the synthesis of 2-amino-3-carboxy-4-phenylthiophenes as novel atypical protein kinase C inhibitors. Also used as a reagent in the synthesis of Metolachlor (M338700); a selective pre-emergence herbicide.
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 Titchenell, P.M., et al.: Bioorg. Med. Chem. Lett., 23, 3034 (2013); Zhang, H.: Nongyao Kexue Yu Guanli, 32, 26 (2011)

Applications p-Methoxytoluene is a building block that has been used as a reactant for the preparation of electrophilic fluorinating agents.
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 Baudoux, J., Cahard, D.: Org. Reactions, 69, 347 (2007)

Impurity Rabeprazole EP Impurity G
Applications Used in the preparation of 2-[[(2-pyridyl)methyl]thio]-1H-benzimidazoles derivatives as anti helicobacter pylori agents.
References Kuehler, T. et al.: J. Med. Chem., 41, 1777 (1998)

Applications rel-(4R,5R)-5-(4-Chlorophenyl)-4-methyl-2-thiazolidinone is a useful building block and has been used in the synthesis of hexythiazox (H298500).
References Lou, J.; et al.: Nongyao, 47, 328 (2008).

Applications 3-Methyl-1,3,5-pentanetriol is used in the synthesis of Mevalonolactone (M339040), in the synthesis of vitamins and isoprenoids such as steroids.
References Yamashita, H. et al.: Frag. J., 28, 62 (2000); Huang, F. et al.: J. Am. Chem. Soc., 97, 4144 (1975);

Applications 4-Methylimidazole is a monomethylated imidazole that can be used as a building block in the preparation of a wide range of biologically active compounds. 4-Methylimidazole is a product which results from the interaction of reducing sugars with ammonia. 4-Methylimidazole showed convulsant activity in animals and is listed as a possible carcinogen.
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 Nishie, K. et al.: Toxicol. Appl. Pharmacol., 14, 301 (1969): Cunha, S.C. et al.: J. Food Comp. Anal., 24, 609 (2011); Chan, P.C. et al.: Arch. Toxicol., 82, 55 (2008);

Applications DMTMM, a conjugating agent that efficiently conjugat PnPS to Luminex microspheres without affecting the antigenicity of a broad set of PnPS.
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 Wrzesien, J. & Graham, D.: Tetrahedron, 68, 1230 (2012); Schlottmann, S. et al.: J. Im. Meth., 309, 75 (2006)

Applications 2,6-Di-(tert-butyl-d9)-4-methylphenol-3,5-d2,OD (CAS# 64502-99-4) is a useful isotopically labeled research compound.

Applications 6-Methylheptanoic acid is used as a reagent to synthesize analogues of Eponemycin, an antibiotic that also exhibits anti-angiogenic activity by inhibiting proteasome function. 6-Methylheptanoic acid naturally occurs as a component of the scent chemical of the brushtail possum.
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 McLean, S., et al.: J. Chem. Ecol., 38, 1318 (2012); Oikawa, T., et al.: Biochem. Biophys. Res. Comm., 181, 1070 (1991); Sin, N., et al.: Bioorg. Med. Chem., 6, 1209 (1998)

Stability Hygroscopic
Applications 2-Fluoro-4-methylphenylboronic Acid (cas# 170981-26-7) is a compound useful in organic synthesis.

Applications 3-Fluoro-4-methoxycarbonylphenylboronic acid, pinacol ester is a useful intermediate for organic synthesis and other chemical transformations.
References Zhao, F., et al.: Eur. J. Med. Chem., 134, 147 (2017); Zhao, F., et al.: Bioorg. Med. Chem., 24, 4281 (2016)

Applications The urinary 1- and 3-methylhistidine (1- and 3-MH) metabolites as potential biomarkers of skeletal muscle toxicity. These metabolites were highly correlated to sex-, dose-, and time-dependent development of cerivastatin-induced myotoxicity. Natural but non-proteinogenic amino acid; employed as index of muscle protein breakdown.
References Berna, M., et al.: Anal. Chem., 79, 4199 (2007), Pritt, M., et al.: Toxicol. Sci., 103, 382 (2008), Tonomura, Y., et al.: Toxicology, 266, 48 (2009),

Applications 2-Methylbutane is a useful synthetic intermediate. It was used in the synthesis of β-chiral sulfonamides.
E3
References Chuprakov, S., et al.: J. Am. Chem. Soc., 133, 10352 (2011);

Applications 2-ethyl-6-methylpyrazine (cas# 13925-03-6) is a useful research chemical.

Applications 2-chloro-N-(2-ethyl-6-methylphenyl)acetamide (cas# 32428-71-0) is a useful research chemical.

Stability Hygroscopic
Applications 4-Chloro-3-cyano-6-methoxy-7-[3-(4-methylpiperazin-1-yl)propoxy]quinoline is a useful reagent to prepare benzofuranyl derivatives for treating solid tumours. It is also an impurity of Bosutinib.
References Hennequin, L. F. A. PCT Int. Appl. (2003), WO 2003047585 A1 20030612 (2003); Hennequin, L. F. A., Gibson, K. H., Foote, K. M. PCT Int. Appl. WO 2003047582 A1 20030612 (2003)

Applications 1-Methyl-1h-1,2,4-triazol-3-amine (cas# 49607-51-4) is a useful research chemical.

Applications 8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dione is an intermediate used to prepare selective inhibitors of dipeptidyl peptidase 4 (DPP4) for potential use in the treatment of type 2 diabetes.
References Sutton, J., et al.: Bioorg. Med. Chem. Lett., 22, 1464 (2012); Lai, Z., et al.: Eur. J. Med. Chem., 83, 547 (2014)

Applications 12-(t-Boc-amino)-1-dodecanol (cas# 67341-03-1) is a compound useful in organic synthesis.