Amino Acids (AA)

<p>Applications β-Alanine-13C3,15N is the isotope labeled analogue of β-Alanine (A637320), which is a naturally occurring beta amino acid. β-Alanine is formed in vivo by the degradation of Dihydro Uracil (D449990) and Carnosine. β-Alanine is also the rate-limiting precursor of Carnosine, as a result supplementation with β-Alanine increases the concentration of Carnosine in muscles.<br>References Derave, W. et al.: J. Appl. Physiol., 103, 1736 (2007); Xia, J.-F. et al.: J. Chrom. B Anal. Technol. Biomed. Life Sci., 977, 1930 (2009); Artioli, G.G. et al.: Med. Sci. Sports Exer.,42, 1162 (2010);<br></p>

<p>Applications 4-Bromo-6-methyl-3H-1,3-benzodiazole<br></p>

<p>Applications Methyl 4-(Bromomethyl)-3-methoxybenzoate is an intermediate used to prepare heteroarylphenyloxoacetyl and heteroarylphenylsulfonyl benzoylpiperazine analogs of BMS 378806 as HIV entry inhibitors. It is also used to synthesize steroid 5α-reductase inhibiting acylpiperidines.<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 Lu, R., et al.: J. Med. Chem., 52, 4481 (2009); Picard, F., et al.: J. Med. Chem., 45, 3406 (2002)<br></p>

<p>Applications An inhibitor of the enzyme Glyoxalase 1.<br>References Vince, R. and Wadd, W.B.: Biochemical and Biophysical Res. Commun., 35, 5 (1969), Vegvari, A., et al.: ChemBioChem, 3(11), 1117 (2002)<br></p>

<p>Applications Calcium D-gluconate monohydrate (cas# 66905-23-5) is a useful research chemical.<br></p>

<p>Applications α-Methylglyceric Acid is a biogenic secondary organic aerosol used in air quality diagnosis.<br>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)<br></p>

<p>Stability Moisture Sensitive<br>Applications (Z)-Metominostrobin (cas# 133408-51-2) is a compound useful in organic synthesis.<br></p>

<p>Applications Tetrahydro-5-methyl-2-furanol is an intermediate in synthesizing 2,3-Dihydro-2-methylfuran (D447355), which is a general reagent used in next generation of biofuels. Dihydrofuranyl derivative.<br>References Simmie, J. et al.: J. Phys Chem., 116, 4528 (2012);<br></p>

<p>Stability Hygroscopic<br>Applications (S)-(+)-2-Methylbutyric Acid is a chiral starting reagent used in various synthetic preparations.<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 Neves, F., et al.: Beilstein. J. Org. Chem., 7, 1504 (2011); King, A.M., et al.: J. Medn. Chem., 54, 6432 (2011); Ferrarni, A., et al.: Chirality., 26, 9 (2011);<br></p>

<p>Applications N-3-(Sulfopropyl)-3-methoxy-5-methylaniline is used as a reagent for the evaluation of basic property and long-term stability of reagents for enzymically assaying triglyceride, cholesterol and uric acid.<br>References Yamaguchi, T., Iryo to Kensa Kiki-Shiyaku., 3, 591-597 (2007).<br></p>

<p>M03060 - H-Leu-OH</p>

<p>Applications Perfluoro(2-methyl-3-pentanone) (cas# 756-13-8) is a useful research chemical.<br></p>

<p>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.<br>References Kwon, Y.E. et al.: Bioorg. Med. Chem., 15, 6596 (2007); Knutsen, L.J.S. et al.: J. Med. Chem., 42, 3463 (1999);<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of 1-methyl-2-thioimidazole (methimazole). It inhibits bone resorption.<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 Paterson, J.R., et al.: Biochem. Biophys. Res. Comm., 116, 449 (1983), Taurog, A., et al.: Endocrinology, 124, 30 (1989).<br></p>

<p>Applications MNC is on the metabolic pathway for 2,4-Dinitotoluene degradation.<br>References Spangoord, R.J., et al.: App. and Environ. Microbiology, 57, 11, 3200 (1991)<br></p>

<p>Applications Used in the synthesis of Capsaicin analogues, useful for their anti-tumor activity.<br>References Fusco, B., et al.: Drugs, 53, 909 (1997), Buisman, G., et al.: Biotechnol. Lett., 20, 131 (1998), Kobata, K., et al.: Bios. Biotechnol. Biochem., 66, 319 (2002), Aluru, M., et al.: J. Exp. Bot., 54, 1655 (2003),; Wang, W. et al.: Gaodeng Xuexiao Huaxue Xuebao 31, 2400(2010)<br></p>

<p>Applications phenyl(pyridin-4-yl)methyl 4-methyl-2-(pyrimidin-2-yl)-1,3-thiazole-5-carboxylate (cas# 1281055-79-5) is a useful research chemical.<br></p>

<p>Applications α-(2,3-Dimethylphenyl)-α-methyl-1H-imidazole-5-methanol is used as a reagent in the synthesis of Medetomidine (M203250); an α2-adrenergic agonist. Also a sedative and analgesic.<br>References Scheinin, M., et al.: Br. J. Clin. Pharmacol., 24, 443 (1987); Stenberg, D., et al.: J. Vet. Pharmacol. Ther., 10, 319 (1987); Virtanen, R., et al.: Eur. J. Pharmacol., 150, 9 (1988); Cullen, L.K., et al.: Br. Vet. J., 152, 519 (1996); Chen, W., et al.: Faming Zhuanli Shenqing. CN 101921234 A 20101222. Dec 22, 2010<br></p>

<p>Applications Sodium 2,2'-Methylene-bis(4,6-di-tert-butylphenyl)phosphate is an organophosphate nucleating agent.<br>References Li, J., et al.: Suliao, 43, 47-50 (2014);<br></p>

<p>Applications 2-(4-methylphenyl)oxirane (cas# 13107-39-6) is a useful research chemical.<br></p>

<p>Applications H-Val-Gly-OH (cas# 686-43-1) is a useful research chemical.<br></p>

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

<p>Applications L-Glutamic acid 5-methyl ester is a protected form of L-Glutamic acid (G596960). L-Glutamic acid is a nonessential amino acid that is important to the mammalian central nervous system. L-Glutamic acid is also a neurotransmitter for cone photoreceptors in the human brain and is used as a treatment for patients who have liver disease accompanied by encephalopathy (a condition termed ‘hepatic coma’).<br>References Anderson, H., et al.: J. Nutr., 99, 82 (1969); Brandon, C. &amp; Lam, D.: Proc. Nat. Acad. Sci., 80, 5117 (1983); McDermott Jr, W., et al.: New Engl. J. Med., 253, 1093 (1955)<br></p>

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

<p>Applications Suberylglycine is one of the acylglycines, an important class of metabolites that have been used in the diagnosis of several inborn errors of metabolism (IEM).<br>References Costa, C., et al.: J. Pharmaceut. Biomed. Anal., 21, 1215 (2000), Garcia-Villoria, J., et al.: Clin. Biochem., 42, 2 (2009), Scalbert, A., et al.: Metabolomics, 5, 435 (2009),<br></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 L-Glutamine (Alpha-15n, 98%) (cas# 80143-57-3) is a useful research chemical.<br></p>

<p>Applications L-Glutamic Acid-d5 is an non-essential amino acid. Its salt form (glutamate) is an important neurotransmitter that plays a key role in long-term potentiation and is important for learning and memory. It is also a key molecule in cellular metabolism.<br>References McEntee, W., et al.: Psychopharmacology, 111, 391 (1993), Manev, H., et al.: Mol. Pharmacol., 36, 106 (1989)<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>Stability Hygroscopic<br>Applications 4-(4-Methylpiperazinomethyl)benzoic Acid, Dihydrochloride (cas# 106261-49-8) is a compound useful in organic synthesis.<br></p>

<p>Applications S-Methyl-L-cysteine is a substrate in the catalytic antioxidant system mediated by methionine sulfoxide reductase A (MSRA). It has been studied as a theurapeutic for neurodegenerative diseases including Parkinson′s.<br>References Wassef, R., et al.: J. Neurosci., 21, 12808 (2007)<br></p>

<p>Applications Carbamoyl-guanidine Amidino Urea Salt, Hydrochloride salt (cas# 926-72-7) is a compound useful in organic synthesis.<br></p>

<p>Applications L-Cysteine Hydrochloride<br></p>

<p>Applications L-Isoleucine is classified as an essential amino acid, and is also a tumour promoter of bladder cancer in rats.<br>References Hatch, T., et al.: Infect. Immun., 12, 211 (1975); Nishio, Y., et al.: Science, 231, 843 (1986)<br></p>

<p>Applications An endogenous antidiuretic hormone in most mammalian species. It is released into the blood from nerve terminals in the posterior pituitary and median eminence. It is a neurotransmitter in the central nervous system and also implicated in a variety of physiological processes such as regulating water balance by antidiuretic action. It is a peptidic V1a receptor agonist that produces vasoconstriction via V1aR-mediated vascular smooth muscle cell contraction and is being used to increase blood pressure in septic shock, a form of vasodilatory hypotension.<br>References Perucca, J. et al.: J. AM. Soc. Nephrol., 19, 1721 (2008); Toba, K. et al.: Prog. Brain Res., 119, 337 (1998); Berrada, K. et al.: J. Biol. Chem., 275, 27229 (2000);<br></p>

<p>Stability Hygroscopic<br>Applications 2,2-Diselanediyldiethanamine dihydrochloride (cas# 3542-13-0) is a useful research chemical.<br></p>

<p>Applications 2-(Acetylamino)-3-(phenylthio)propanoic acid is a useful chemical in research.<br></p>

<p>Applications L-Glutamic acid dibenzyl ester 4-toluenesulfonate<br></p>

<p>Applications L-Alanine-d3 is the labeled analogue of L-Alanine (A481500), which is used to make in-vivo measurement of glucose and alanine metabolism in studies of patients with diabetes. L-Alanine is a non-essential amino acid for human development. L-Alanine is one of the 20 amino acids encoded by the genetic code.<br>References Bier, D.M. et al.: Diabetes, 26, 1005 (1977); Capaldo, B. et al.: J. Clin. Endocrinol. Metab., 71, 1220 (1990); Giacca, A. et al.: Diabetes, 47, 1763 (1998)<br></p>

<p>Applications 1-(4-methyl-3-cyclohexen-1-yl)ethanone is an essential oil found in Cedrus atlantica wood and orange peels.<br>References Uehara, Ayaka, et al.: Phytochemistry, 144, 208-215 (2017); Liu, Bo, et al.: Yancao Keji, (9), 52-56 (2014)<br></p>

<p>Applications S-Phenylmercapturic Acid-d5 is the labelled analogue of S-Phenylmercapturic Acid (P335600), an important metabolite of Benzene.<br>References Qu, Q., et al.: Am. J. Ind. Med., 37, 522 (2000); Ghittori, S., et al.: Int. Arch. Occup. Environ. Health, 67, 195 (1995);<br></p>

<p>Applications 2,6-Diaminopimelic Acid is useful in biological studies involving amino acids and amino sugars as molecular indicators of the origins of organic matter in buried tephra soils.<br>References Hobara, S., et al.: Geoderma, 373, 114449 (2020)<br></p>

<p>Applications Useful for the synthesis of Biocytin containing peptides to study the mechanism of reactions catalyzed by biotin - containing enzymes.<br>References Bodanszky, M., and Fagan, D.T.: J. Am. Chem. Soc., 99, 235 (1977)<br></p>

<p>Applications L-Lysine-2,6,6-d3 HCl is a useful isotopically labeled compound of L-Lysine HydrochlorideDISCONTINUED PLEASE SEE L486915 (L468923)<br></p>

<p>Applications N-Methyl-N-trimethylsilylacetamide, is a powerful silylating agent for polar 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 Melanie MacGregor-Ramiasa et. al; Acta biomaterialia, 56, undefined (2017-2-25)<br></p>

<p>Applications Methionine-methyl-d3 is the labeled Methionine-methyl, a useful building block.<br></p>

<p>Applications 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 L-Tryptophan-d3 is a deuterium labelled amino acid, which is a protein building block. The unlabelled L-Tryptophan (T947210) is also available.<br>References Goze, C., et al.: Eur. J. Pharmacol., 643, 153 (2010), Bhandare, P., et al.: J. Chem. Pharm. Res., 2, 372 (2010),<br></p>

<p>Applications A proteinogenic amino acids involved in the biosynthesis of purines and pyrimidines. Inhibitor of serine palmitoyltransferase. A neuromodulator.<br>References Junjaud, G. et al.: J. Neurochem., 98, 1159 (2006); Hanada, K. et al.: FEBS Lett., 474, 63 (2000); Pollegionni, L. et al.: Cell. Mol. Life Sci., 67, 2387 (2010);<br></p>

<p>Applications L-Ornithine-2,3,3,4,4,5,5-d7 hydrochloride is the labelled analogue of L-Ornithine Hydrochloride (O695550), 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-Aminohippuric Acid is used in the measurement of renal plasma flow as a diagnostic tool which may be applied towards kidney disorders.<br>References Phillips, R. et al.: Am. J. Physiol., 152, 523 (1948);<br></p>

<p>Applications A labelled marker for peroxynitrite. Oxidant and cytotoxic agent.<br>References Sekiguchi, M., et al.: Brain Res., 978, 228 (2003), van den Tweel, E., et al.: J. Neurobiol., 167, 64 (2005), Shirakura, T., et al.: Biol. Pharm. Bull., 28, 1658 (2005),<br></p>

<p>Applications Deuterated Repaglinide, a non-sulfonylurea oral hypoglycemic agent which is used as an antidiabetic.<br>References Wolffenbuttel, B.H.R., et al.: Eur. J. Clin. Pharmacol., 45, 113 (1993), Ampudia-Blasco, F.J., et al.: Diabetologia, 37, 703 (1994),<br></p>

<p>Applications L-Thioproline is used to create a monolayer on gold electrodes for the determination Copper(II). L-Thioproline has shown to be an effect inhibitor of proline absorption in Saccharomyces chevalieri.<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 Cui, X., et. al.: Sci. China Chem., 53, 257 (2010); Magana-Schwenchke, N., Schwencke, J.: BBA-Biomembranes, 173, 313 (1969)<br></p>

<p>Applications Bisphenol B Mono-β-D-glucuronide is a metabolite of Bisphenol B (B519565), which is the analogue of Bisphenol A (B519495), that is used to make certain plastic an epoxy resins. BPA and its analogs, are also shown to activate human pregnane X receptor (PXR), a nuclear receptor that functions as a master regulator of xenobiotic metabolism.<br>References Krishnan, A.V., et al.: Endocrinology, 132, 2279 (1993); Steinmetz, R., et al.: Trends Endocrinol. Metab., 9, 124 (1998); Petersen, H., et al.: Eur. Food Res. Technol., 216, 355 (2003); Yipeng, S., et al.: Env Hea. Pers., 120, 399 (2012);<br></p>

<p>Applications 1,2-Bismethylphenidate is an impurity of methylphenidate (M325880), an CNS stimulant.<br>References Greenblatt, E.N., et al.: J. Pharmacol. Exp. Ther., 131, 115 (1961), Padmanabhan, G.R., Anal. Profiles Drug Subs., 10, 473 (1981), Srinivas, N.R., et al.: Pharm. Res., 10, 14 (1993),<br></p>

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