Amino Acids (AA)

<p>Applications (2-methylphenoxy)acetic acid (cas# 1878-49-5) is a useful research chemical.<br></p>

<p>Applications Labelled analogue of an essential amino acid found in naturally produced peptides. Unlike its stereoisomer, L-tryptophan, it is not used in structural or enzyme proteins.<br>References Karunakaran, S.et al.: Bochem. J., 414, 343 (2008); Pallaghy, P.K. et al.: Biochem., 38, 11553 (1999);<br></p>

<p>Applications L-Serine is used in the synthesis of purines and pyrimidines as antibacterial/antifungal agents, as well as acting as a proteinogenic compound.<br>References Olivella, M. et al.: Bioorg. Med. Chem., 20, 6109 (2012);<br></p>

<p>Stability Moisture Sensitive<br>Applications 1-Acetate 4-Methanesulfonate 1,4-Butanediol is used in the facile cleavage of ethers. A Busulfan Impurity<br>References Mazur, Y., et al.: J. Org. Chem., 36, 532 (1971);<br></p>

<p>Applications 1-Chloro-4-methoxybutane (cas# 17913-18-7) is a compound useful in organic synthesis.<br></p>

<p>Applications 2-Hydroxy-5-methylpyridine (cas# 1003-68-5) is a useful compound for organic synthesis. In particular it has been used for the diastereoselective preparation of cyclobutane-fused pyridinyl sulfonyl fluorides.<br>References Liu, J., et al.: Org. Biomol. Chem., 18, 4019 (2020)<br></p>

<p>Stability Hygroscopic<br>Applications Dityrosine (DY), a tyrosine dimer formed by 3,3’-biaryl bond formation can be used as a biomarker to detect oxidative protein damage and selective proteolysis. Fluorescence intensity decays of Dityrosine are generally characterized by two decay components, one with a lifetime in the range of 150 to 800 ps and another between 2.5 and 4.5 ns.<br>References Libertini, L., et al.: Biophys. J., 47, 765 (1985), Huggins, T., et al.: J. Biol. Chem., 268, 12341 (1993), Malencik, D., et al.: Biochemistry, 35, 4375 (1996),<br></p>

<p>Applications 2-bromo-N-methoxy-N-methylbenzamide (cas# 899425-05-9) is a useful research chemical.<br></p>

<p>Stability Hygroscopic<br>Applications 3-Chloro-L-tyrosine was used in the enzymatic synthesis of halogen derivatives of aromatic amino acids labeled with hydrogen isotope. 3-Chloro-L-tyrosine exhibited stronger antioxidant properties in Hb-induced oxidative stress as was evident by higher efficiency of reduction of ferryl species.<br>References Winnicka, E., et al.: J. Chem. Eng., 8, 54 (2014); Lu, N., et al.: Toxicol. In Vitro, 28, 847 (2014);<br></p>

<p>Applications D-Arginine is an unnatural isomer of L-Arginine (A769505), and is used to inhibit glutamate-induced nitric oxide production in rats. Derivatives of D-Arginine are used for pharmaceutical purposes, one example is 1-Deamino-8-D-arginine vasopressin, which is used to treat various bleeding disorders.<br>References Castellano, M., et al.: Neurosci. Lett., 314, 127 (2001); Kobrinsky, N., et al.: Lancet, 323, 1145 (1984); Weyrich, A., et al.: Circulation, 86, 279 (1992)<br></p>

<p>Applications (1-Methyl-1H-imidazol-2-yl)-acetic acid (cas# 118054-54-9) is a useful research chemical.<br></p>

<p>Applications α-Methyl-L-phenylalanine is used to prepare hippuryl-α-methylphenylalanine and hippuryl-α-methylphenyllactic acid as substrates for carboxypeptidase A. It is also used in the synthesis of high affinity tachykinin NK2 receptor antagonists.<br>References Lee, M., et al.: Bioorg. Med. Chem., 8, 815 (2000); Boyle, S., et al.: Bioorg. Med. Chem., 2, 101 (1994)<br></p>

<p>Stability Hygroscopic<br>Applications D-Histidine, Hydrochloride Monohydrate was a useful reagent for the preparation of diastereomeric histidine-containing dipeptides to analyze lipophilicity and ionization constants.<br>References Vistoli, G., et al.: Chirality, 24, 566 (2012)<br></p>

<p>Applications (3-Methyl-2-butenyl)triphenyl-phosphonium Bromide (cas# 1530-34-3 ) is a compound useful in organic synthesis.<br></p>

<p>Applications L-Asparagine-d3 Hydrate is an isotope labelled L-Asparagine Hydrate, a naturally occurring amino acid that is not a essential for humans and can be synthesized from central metabolic pathway intermediates.<br>References Burda, P., et al.: Biochim. Biophys. Acta., 1426, 239 (1999); Yamane, H., et al.: Animal. Sci. J., 80, 286 (2009);<br></p>

<p>Applications An immunosuppressant that has revolutionized organ transplantation through its use in the prevention of graft rejection.A group of nonpolar cyclic oligopeptides with immunosupppressant activity.<br>References van Wartburg, A., et al.: Prog. Med. Chem., 25, 1 (1988), Jorgensen, K.A., et al.: Scand. J. Imunol., 57, 93 (2003), Vollenbroeker, et al.: Transplant. Proc., 37, 1741 (2005),<br></p>

<p>Applications A labelled version of Nateglinide, an amino-acid derivative that stimulates insulin secretion which is used as an antidiabetic.<br>References Shinkai, H., et al.: J. Med. Chem., 32, 1436 (1989), Sato, Y., et al.: Diabetes Res. Clin. Pract., 12, 53 (1991), Vicent, D., et al.: J. Clin. Invest., 111, 1373 (2003), Ceriello, A., et al.: Diabet. Med., 21, 171 (2004),<br></p>

<p>Applications A potential chiral building blocks for the synthesis of different α -methyl α -amino acids.<br>References Rew, Y., et al.: J. Med. Chem., 45, 3746 (2002),<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>Stability Light sensitive, Temperature Sensitive<br>Applications 3-Methyl-1,5-pentanediol Diacrylate is a useful chemical reagent.<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 H-L-METHR-OH (cas# 2812-28-4) 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 Intermediate in the preparation of Epinephrine metabolites<br>References Mizuta, H., et al.: Bioorg. Med. Chem., 10, 675 (2002),<br></p>

<p>Applications Ac-Glu-OMe (cas# 17015-15-5) is a useful research chemical.<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>Stability Moisture Sensitive<br>Applications A biologically active, cell permeable, but nonphysiologic ceramide analog. It inhibits cell proliferation and induces monocytic differentiation of HL-60 cells and induces apoptosis. It stimulates protein phosphatase 2A and activates MAP Kinase2.<br>References Inoue, T., et al.: J. Biol. Chem., 284, 9566 (2009), Kang, J., et al.: Bioorg. Med. Chem., 17, 1498 (2009), Rath, G., et al.: Int. J. Biochem. Cell Biol., 41, 1165 (2009),<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>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 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>Applications Intermediate for the preparation of Glimepiride.<br></p>

<p>Stability Hygroscopic<br>Applications A labelled metabolite of Methyl isocyanate.<br>References Slatter, J. G., et al.: Chem. Res. Toxicol., 4, 157 (1991),<br></p>

<p>Applications N-Boc-piperazine (cas# 57260-71-6) is a compound useful in organic synthesis.<br></p>

<p>Applications 1-(2-Isopropylthiazol-4-yl)-N-methylmethanamine dihydrochloride (cas# 1185167-55-8) is a useful research chemical.<br></p>

<p>Stability Temperature Sensitive<br>Applications Methyl 2,3,4-Tri-O-isobutyryl-D-glucopyranuronate (cas# 1190403-86-1) is a compound useful in organic synthesis.<br></p>

<p>Applications 3,5-Diiodo-DL-tyrosine is used for diagnosis of hypothyroidism caused by DEHAL1 gene defects.<br>References Encinas, S., et al.: Chem. Res. Toxicol., 11, 946 (1998), Daneshvar, A., et al.: Chemosphere, 80, 301 (2010), Eriksson, J., et al.: Photochem. Photobiol., 86, 528 (2010),<br></p>

<p>Applications 4-Methoxy-6-(trifluoromethyl)-1,3,5-triazin-2-amine can be used as reactant/reagent in preparation of N-phenylsulfony-N'-pyrimidinylureas as herbicides.<br>References Hamprecht, G., et al.: Ger. Offen., DE 4322726 A1 19950112 (1995)<br></p>

<p>Applications 4-(4-Methoxyphenyl)-2-butanone is also used in the synthesis of novel axially chiral Rh-NHC complexes. Used to synthesize carbonyl complexes as novel traceless linkers.<br>References Duan, W. et al.: Chem. Comm., 23, 2916 (2003); Gibson, S. et al.: Tetrahedron. Lett., 40, 1417 (1999);<br></p>

<p>Applications Perfluoro-4-Methoxybutanoic Acid (cas# 863090-89-5) 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 4-METHYL-2-PHENYL-2-PENTENAL (cas# 26643-91-4) is a useful research chemical.<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 1-methoxypropan-2-amine hydrochloride (cas# 677743-83-8) is a useful research chemical.<br></p>

<p>Applications Cyclic propano guanine adduct DNA acetaldehyde histone.<br>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),<br></p>

<p>Applications 1-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazine is an intermediate used to prepare nonracemic γ-bicyclic heteroarylpiperazine- and heteroarylpiperidine-substituted prolinylthiazolidines as selective and orally active dipeptidylpeptidase 4 inhibitors for use as antidiabetic agents.<br>References Yoshida, T., et al.: Bioorg. Med. Chem., 20, 5705 (2012)<br></p>

<p>Applications 5-Methyl-5-phenylhydantoin is a reactant for synthesis of beta-amino alcohols as inhibitors of anti-tubercular target N-acetyltransferase, chlorohydantoins and specific MMP inhibitors.<br>References Fullam, E., et al.: Bioorg. Med. Chem. Lett., 21, 1185 (2011); Whitehead, D., et al.: Tetrahedron Lett., 50, 3 (2009); Chollet, A., et al.: Bioorg. Med. Chem., 10, 531 (2002)<br></p>

<p>Stability Hygroscopic<br>Applications 3-Methylglutaconic acid is a glutarate which builds up in the urine in 3-methylglutaconic aciduria. 3-methylglutaconic aciduria is a term used to describe five different disorders that impair the functioning of energy-producing centers within cells (mitochondria)<br>References Walsh, R., et al.: J. Inherit. Metab. Dis., 22, 251 (1999); Gonzalez, I., et al.: Am J Med Genet A., 134, 409 (2005); MacKenzie, J., et al.: Biochim Biophys Acta., 1772, 509 (2007)<br></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 4-Methyl-6-(methylamino)-1,3,5-triazin-2(1H)-one is a heterocyclic Triazine based building block useful in organic synthesis. It is related to 2-Amino-4-methoxy-6-methyl-1,3,5-triazine (A616880), which is used to synthesize pesticides.<br>References Klein, J., et al.: J. AOAC Intrnational, 86, 1015 (2003); Pang, G., et al.: J. Chromat. A, 1125, 1 (2006);<br></p>

<p>Applications Phytosiderophores are produced in higher plants as iron chelating amino acids that promote uptake of iron from soil.<br>References Klair, S., et al.: J. Plant Nutr., 19, 1295 (1996),<br></p>

<p>Applications Potent crosslinking inhibitors.<br>References Sloan, J., et al.: J. Biol. Chem., 274, 23740 (1999).<br></p>

<p>Applications Cucumopine is used in biological studies to evaluate Agrobacterium rhizogenes cucumopine strain T-DNA ORF8 and its effects on transgenic tobacco root cultures.<br>References Bonfill, M., et al.: Curr. Top. Plant Biol., 3, 223 (2002);<br></p>

<p>Applications 2'-Deoxy-N-methyl-cytidine is a nucleotide derivative used as an analytical reagent.<br>References Dupret, D.: Biomed. Health. Res., 23(Human Genome Analysis), 244-255 (1998)<br></p>

<p>Applications L-Threonine-2,3-d2 (CAS# 1202936-45-5) is a useful isotopically labeled research compound.<br></p>

<p>Applications N-Methylacetamide can be used for the synthesis of N-​sulfonyl amidines and acyl sulfonyl ureas.Environmental contaminants; food contaminants.<br>References Chow, S. Y., et al.: J. Org. Chem. 82, 2515 (2017)<br></p>

<p>Applications Isotope labelled L-Serine is used in the synthesis of purines and pyrimidines as antibacterial/antifungal agents, as well as acting as a proteinogenic compound.<br>References Olivella, M. et al.: Bioorg. Med. Chem., 20, 6109 (2012);<br></p>

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

<p>Applications [2-(1-methyl-1H-pyrazol-3-yl)-1H-benzimidazol-1-yl]acetic acid (cas# 1171565-50-6) is a useful research chemical.<br></p>

<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>M02979 - H-Glu-OH</p>

<p>Applications Labelled analogue of L-Phenylalanine, an essential amino acid. L-Phenylalanine is biologically converted into L-tyrosine, another one of the DNA-encoded amino acids, which in turn is converted to L-DOPA and further converted into dopamine, norepinephrine, and epinephrine. L-Phenylalanine is produced for medical, feed, and nutritional applications such as in the preparation of Aspartame.<br>References Hollunger, G. et al.: Acta Pharmacol. Toxicol., 34, 391 (1974); Bagchi, S.P. et al.: Biochem. Pharmacol., 26, 900 (1977);<br></p>

<p>Applications An acylglycine present in urniary excretion that can be analyzed and be used as diagnostic tool for metabolic disorders, complementary to organic acids and acylcarnitine profiles.<br>References Bonafe, L. et al.: Mol. Genetics Metab., 69, 302 (2000);<br></p>

<p>Stability Hygroscopic<br>Applications 4-Chloro-2-methylaniline Hydrochloride (cas# 3165-93-3) 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-Ethyl-4-methyl-1-pentanol is a volatile chemical that can be used to diagnose ratoon stunting disease in Sugar cane.<br>References Berna, A. Z., et al.: Pro. of the Conf. of the Austr. Soc. of Sugar Cane Tech., 37th, 150-157 (2015)<br></p>

<p>Applications 3-Methyl-1-butyl-d11 Alcohol (CAS# 170678-50-9) is a useful isotopically labeled research compound.<br></p>

<p>Applications (2S,4R)-4-Hydroxy-L-glutamic Acid is a metabolite of Glutamic acid (G596960).<br>References Hampson, D., et al.: J. Biol. Chem., 274, 33488 (1999), Jensen, A., et al.: Eur. J. Pharmacol., 397, 247 (2000),<br></p>

<p>Applications A metabolite of S-propylcysteine.<br>References Jones, A.R., et al.: Xenobiotica, 10, 827 (1980), 25) Ramu, K., et al.: Chem. Res. Toxicol., 8, 515 (1995), Krause, R., et al.: Drug Metab. Dispos., 25, 1013 (1997), Powley, M., et al.: Chem. Res. Toxicol., 16, 1448 (2003),<br></p>

<p>Applications Thiodiglycolic Acid-d4 acts as a reagent for the synthesis of metabolites of S-carboxymethyl-L-cysteine and S-methyl-L-Cysteine and of some isotoically labelled (2H, 13C) analogs.<br>References Meese, C. O., et al.: Archiv der Pharmazie, 323, 957 (1990)<br></p>