Amino Acids (AA)

<p>Applications 2,2-Dimethoxy-N-methylethanamine is an impurity formed in the synthetic process of Methimazole (M260300), a thiourea antithyroid agent that prevents iodine organification,<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Sitar, D.S., et al.: J. Pharmacol. Exp. Ther., 184, 432 (1973), Aboul-Enein, H.Y., et al.: Anal. Profiles Drug Subs., 8, 351 (1979), Cooper, D.S., et al.: N. Engl. J. Med., 311, 1353 (1984), Atterwill, C.K., et al.: Food Chem. Toxicol., 29, 355 (1991),<br></p>

<p>Stability Light Sensitive<br>Applications α-Methacrylic acid is used in chemistry as a stabilizing agent, forming a thin capping layer on the surface of nanoparticles. α-Methacrylic acid is also used as a surfactant, so that control is maintained during nanocrystal growth. α-Methacrylic acid is also used as a chelating agent.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Peng, W., et al.: J. Cryst. Growth, 279, 454 (2005); Qu, S., et al.: Appl. Phys. Lett., 80, 3605 (2002); Zhao, G., et al.: Phys. C: Supercond., 468, 2317 (2008)<br></p>

<p>Applications 2-Amino-5-methylpyridine (cas# 1603-41-4) is a compound useful in organic synthesis.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Francotte, P., et al.: Bioorg. Med. Chem., 16, 9948 (2008), Sundaraganesan, N., et al.: J. Mol. Struc., 891, 284 (2008), Caleta, I., et al.: J. Med. Chem., 52, 1744 (2009),<br></p>

<p>Applications 1-[1-(2-methoxyethyl)piperidin-3-yl]methanamine (cas# 936940-49-7) is a useful research chemical.<br></p>

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

<p>Applications 2-Methoxybenzoic Acid is used in the preparation of benzohydroxamic acids as potent and selective anti-hepatitis C virus (HCV) agents.<br>References Kozlov, M.V., et al.: Bioorg. Med. Chem. Lett., 23, 5936 (2013)<br></p>

<p>M02962 - H-Thr-OH</p>

<p>Applications L-Allo-isoleucine-d10 is a derivative compound of L-allo-isoleucine (A548200), which has been suggested to induce epithelial β-defensin expression. In addition, L-allo-isoleucine is utilized in the biosynthesis pathway for coronamic acid.<br>References Fehlbaum, P., et al.: Proc. Natl. Acad. Sci. USA 97, 12723 (2000); Parry, R. J., et al.: J. Am. Chem. Soc. 113, 1849 (1991)<br></p>

<p>Applications 1,2-Dichloro-2-methylpropane (cas# 594-37-6) is a useful research chemical.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br></p>

<p>Applications 2-Bromo-4'-methylpropiophenone (cas# 1451-82-7) is a compound useful in organic synthesis.<br></p>

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

<p>Applications (1-Chlorocyclohexyl)cyclohexyl-methanone is a synthetic intermediate and a potential reagent for the synthesis of Dicyclomine Impurity A (B382435) and Dihexyverine Hydrochloride (D448200).<br>References Cramer, R., et al.: J. Med. Chem., 47, 6777 (2004); Vilar, S., et al.: J. Med. Chem., 49, 1118 (2006); Kopp, M., et al.: B. Soc. Chim. Fr., no vol., 84 (1952); Levy, J., et al.: CR. Soc. Biol., 144, 339 (1950)<br></p>

<p>Impurity Betahistine EP Impurity C (Free Base)<br>Applications N-Methyl-N,N-bis(2-pyridylethyl)amine is used as a reagent in the preparation of copper pyridylmethylethylenediamine dicyanamido polymeric complexes.<br>References Mautner, F.A. et al.: Inorg. Chim. Acta, 362, 4073 (2009);<br></p>

<p>Applications 5-Amino-2-methylbenzotrifluoride is used to prepare azoles as inhibitors of VEGF receptors 1 and 2 with high intestinal permeability. It can also be used to prepare curcumin analogs conjugated with antiandrogens.<br>References Kiselyov, A., et al.: Bioorg. Med. Chem. Lett., 17, 1369 (2007); Shi, Q., et al.: Bioorg. Med. Chem., 20, 4020 (2012)<br></p>

<p>Stability Hygroscopic<br>Applications β-Methylamino-L-alanine Hydrochloride is a useful intermediate in the synthesis of β-N-methylamino-L-alanine and other amino acid derivatives.<br>References Arevalo-Garcia, E. B., et al.: Tetrahedron Lett., 55, 2335 (2014); Sagiyan, A. S., et al.: Hayastani Kimiakan Handes, 61, 424 (2008); Sagiyan, A. S., et al.: Russ. Chem. Bull., 46, 483 (1997)<br></p>

<p>Applications 5-Bromo-2-(2-methyl-2H-tetrazol-5-yl)pyridine is a reagent in the synthesis and structure-activity relationship studies of highly potent novel benzoxazinyl-oxazolidinone which is an antibacterial agent. Benzoxazinyl-oxazolidinone had potent activity against Gram-positive pathogens. 5-Bromo-2-(2-methyl-2H-tetrazol-5-yl)pyridine is also an intermediate in the synthesis of Tedizolid (T013750).<br>References Xin, Q., et al.: J. Med. Chem., 54, 7493 (2011)<br></p>

<p>Stability Hygroscopic<br>Applications Chlorobutanol is used as a preservative and sedative. It has also been shown to exhibit antibacterial properties.<br>References Dutta, T., et al.: PCT Int. Appl., 22, (2020); Ibibia, E., et al.: Asian. J. Pharm. Clin. Res., 9, 179-182 (2016)<br></p>

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

<p>Applications An intermediate used in the synthesis of Pregabalin (P704800) and related compounds.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Posadas, I., et al.: Br. J. Pharmacol., 142, 331 (2004),<br></p>

<p>Applications Labelled Tiopronin. It is used as antidote against heavy metal poisoning; hepatoprotectant; mucolytic.<br>References Capasso, F., et al.: Agents Actions, 11, 741 (1981), Amor, B., et al.: Arthritis Rheum., 25, 698 (1982), Ichida, F., et al.: J. Int. Med. Res., 10, 325 (1982),<br></p>

<p>Applications N-Methyl-​γ-​phenoxybenzenepropanamine Hydrochloride is a reagent used in the preparation of novel molecules displaying potent MDR reversal activity in cancer.<br>References Velingkar, V. et al.: Chinese J. Chem., 29, 504 (2011);<br></p>

<p>Stability Hygroscopic<br>Applications Trigonelline-d3 HCl is deuterium labelled Trigonelline HCl. Trigonelline HCl has utility in developing site-specific system that delivers drugs to the brain. It has also been suggested as a potential anti-Alzheimer disease agent.<br>References Bodor, N., et al.: J. Med. Chem 26, 313 (1983); Makowska, J., et al.: J. Chromatogr. B 968, 101 (2014)<br></p>

<p>Stability Air Sensitive, Moisture Sensitive<br>Applications (4-Formyl-5-hydroxy-6-methylpyridin-3-yl)methyl dihydrogen phosphate hydrate (cas# 41468-25-1) is a useful research chemical.<br></p>

<p>Applications 5-Methoxyindole-3-acetic Acid is a chemical reagent used in the analysis of the physiological properties of auxins.<br>References Ferro, N. et al.: J. Clin.Info. Model., 46, 1751 (2006);<br></p>

<p>Applications Labelled 4-Methylimidazole (M312990). 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.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>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);<br></p>

<p>Applications 5-Methoxy-2-methylaniline (cas# 50868-72-9) is a useful research chemical.<br></p>

<p>Applications 4-methyl-2-(4-(trifluoromethyl)phenyl)thiazole-5-carboxylic acid (cas# 144059-86-9) is a useful research chemical.<br></p>

<p>Applications 3-(methyl-d3)-1H-Indole-2,4,5,6,7-d5 is the labeled analogue of 3-Methylindole (M313470), a naturally abundant pneumotoxin, found primarily in mammalian feces providing its strong fecal odor; however in lower concentrations the compound has a pleasent aroma, giving orange blossoms and jasmine their pleasing scent. It is often a component of commercial fragrances and perfumes.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Nakashima, T., et al.: Biol. Pharm. Bull., 32, 832 (2009), Xu, H., et al.: Chem. Pharm. Bull., 57, 321 (2009), Bodoor, K., et al.: J. Med. Chem., 52, 3753 (2009), Naskar, S., et al.: J. Chem. Res., 3, 174 (2009), Sollner, K., et al.: J. Agric. Food Chem., 57, 4319 (2009),<br></p>

<p>Applications 2-Ethyl-2-methylpentanoic Acid is a derivative of 2,5-Dimethyl-2-ethylhexanoic Acid (D461540), used in biological studies to evaluate environmental chemicals for estrogenicity.<br>References Rabinowitz, J.R., et al.: Chem. Res. Toxicol.,22, 1594 (2009); Judson, R., et al.: Environ. Health Perspect, 117, 685 (2009)<br></p>

<p>Stability Hygroscopic<br>Applications Decanoyl-L-carnitine-d3 Chloride is the isotope labelled analog of Decanoyl-L-carnitine Chloride (D212580); a metabolite of L-Carnitine (C184110) which is an essential cofactor of fatty acid metabolism. Also required for the transport of fatty acids through the inner mitochondrial membrane.<br>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)<br></p>

<p>Applications D-Tyrosine-d2 is deuterium labelled D-Tyrosine (T899970). D-Tyrosine, the stereoisomer to L-Tyrosine (T899975), is an amino acid used in various organic syntheses for antibiotics. It is used in the synthesis of (-)-anisomycin, as well as BATSI (boronic acid transition state inhibitors) which act on β-lactamases. It has also been studied as an inhibitor of microbial growth on surfaces, reducing microbial attachment to hydrophillic glass and hydrophobic polypropylene surfaces.<br>References Li, Ji. et al.: Chin. Chem. Lett., 23, 647 (2012); Xu, H. et al.: Water Res., 45, 5796 (2011); Ke, W. et al.: Antimicrob. Agents Chemother., 55, 174 (2011)<br></p>

<p>Applications (R)-D-Methioninol<br></p>

<p>Applications D-Homophenylalanine<br></p>

<p>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.<br>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)<br></p>

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

<p>Applications N-Boc-L-cis-4,5-Methanoprolineamide is an intermediate used to prepare methanoprolinenitrile-contg. dipeptide mimetics as DPP-IV inhibitors and as antidiabetic agents.<br>References Magnin, D., et al.: J. Med. Chem., 47, 2587 (2004)<br></p>

<p>Impurity Flumazenil EP Impurity E<br>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.<br>References Zhang, P., et al.: J. Med. Chem., 38, 1679 (1995)<br></p>

<p>Applications N-Methyl-L-alanine is a reactant used in the preparation of site-specific trastuzumab maytansinoid antibody-drug conjugates with improved therapeutic activity.<br>References Pillow, T.H., et. al.: J. Med. Chem., 57, 7890 (2014)<br></p>

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

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

<p>Applications Piperazine derivative used as reference material for forensic laboratories.<br>References Brady, J., et al.: Drug Dev. Res., 20, 231 (1990), Winter, J., et al.: J. Pharmacol. Exp. Ther., 262, 682 (1992), Ator, N., et al.: Eur. J. Pharmacol., 241, 237 (1993), Forster, E., et al.: Eur. J. Pharmacol., 281, 81 (1995),<br></p>

<p>Applications Ethyl Lauroyl Arginate Hydrochloride is used as a food antimicrobial in the sanitation of preserved foods. It is also used in cosmetics as a preservative.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Brandt, A. et al.: . Food. Sci., 75, M557 (2010); Taormina, P. et al.: J. Food. Prot., 72, 1216 (2009); Chem. and Eng. News Page 14, Nov. 5 (2018)<br></p>

<p>Stability Hygroscopic, Light Sensitive<br></p>

<p>Applications 2-Methoxyethyl 3-oxobutanoate (cas# 22502-03-0) is a useful research chemical.<br></p>

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

<p>Applications N-Acetyl-S-benzyl-d5-L-cysteine is deuterium labelled N-Acetyl-S-benzyl-L-cysteine, which is a metabolite of toluene.<br>References Gargas, M., et al.: Toxicol. Appl. Pharmacol., 98, 87 (1989), Commandeur, J., et al.: Pharmacol. Rev., 47(2), 271 (1995), Campo, P., et al.: Neurotoxicol. Teratol., 21, 427 (1999), Lohse, C., et al.: J. Agr. Food Chem., 48, 5913 (2000),<br></p>

<p>Stability Moisture Sensitive<br>Applications An inhibitor of alkaline phosphatase isoenzymes. An analog of Homoarginine (H585000).<br>References Muth, W., et al.: J. Biol. Chem., 249, 7463 (1974), Hanukoglu, I., et al.: Eur. J. Biochem., 180, 479 (1989), Khaw, L., et al.: J. Bacteriol. 180, 809 (1998), Gallagher, D., et al.: J. Mol. Biol., 342, 119 (2004),<br></p>

<p>Applications The main labelled metabolite of o-xylene.<br>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),<br></p>

<p>Applications H-L-METHR-OH (cas# 2812-28-4) is a useful research chemical.<br></p>

<p>Applications N-Acetyl-L-alanine is used as a biomarker for prostate cancer.<br>References Jansen, R., et al.: Clin. Biochem., 38, 362 (2005),<br></p>

<p>Applications N-Boc-L-proline is a useful synthetic intermediate. It is used to synthesize Daclatasvir (D101500) which nhibits the HCV protein NS5A. Daclatasvir (D101500) can be used as a drug candidate for the treatment of hepatitis C (HCV).<br>References Gao, M., et al.: Nature, 465(7294), 96 (2010); Bell, T. W., Chem. Med. Chem., 5(10), 1663 (2010);<br></p>

<p>Applications Sorbicillin analog. A bioactive secondary metabolites from terrestrial Streptomyces species TN262.<br>References Ma, L. et al. : J. Anitibiot. 64, 645 (2011); Elleuch, L. et al.: Appl. Biochem. Biotech. 162, 579 (2010)<br></p>

<p>Applications Labelled L-Glutamine (G597000). L-Glutamine is an essential amino acid that is a crucial component of culture media that serves as a major energy source for cells in culture. L-Glutamine is very stable as a dry powder and as a frozen solution. In liquid media or stock solutions, however, L-glutamine degrades relatively rapidly. Optimal cell performance usually requires supplementation of the media with L-glutamine prior to use.<br>References Rivett, A., et al.: J. Biol. Chem., 260, 300 (1985), Watford, M., et al.: Metabolism, 49, 141 (2000), Wilmore, D., et al.: J. Nutr., 131, 2543S (2001),<br></p>

<p>Applications 5-Amino-6-methylbenzimidazolone<br></p>

<p>Applications A nitroamino subsituted primary alcohol.<br></p>

<p>Applications (R)-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic Acid, is an amino acid building block used in peptide synthesis. With a growing peptide drug market the fast, reliable synthesis of peptides is of great importance.<br></p>

<p>Stability Hygroscopic<br>Applications L-Ornithine is a non-essential amino acid for human development but is required intermediate in arginine biosynthesis. L-Ornithine is found in virtually all vertebrate tissues as well as incorporated into proteins, such as tyrocidine. Isolation from chicken excreta.<br>References Fattori, D., et al.: J. Med. Chem., 50, 550 (2007), Gomez-Alonso, S., et al.: J. Agric. Food Chem., 55, 608 (2007), Subramaniam, R., et al.: Bioorg. Med. Chem. Lett., 18, 3333 (2008),<br></p>

<p>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.<br>References Graeme, S., et al.: Bioorg. Med. Chem. Lett., 22, 1750 (2012);<br></p>

<p>Applications L-Lysine L-Malate is used in the preparation of amino acid ionic liquids for use in food and medical field.<br></p>