Amino Acids (AA)

<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>Applications N-Acetyl-S-(2,5-dimethylbenzene)-L-cysteine-d3 (cas# 1331909-07-9) is a compound useful in organic synthesis.<br>References Gonzalez-Reche, L., et al.: Arch. Toxicol., 77, 80 (2003),<br></p>

<p>Applications 2-Amino-5-chloro-3-methylbenzoic Acid is a useful research chemical for the preparation of benzoyl urea containing anthranillic acid groups with insecticidal activity.<br>References Peng, Y., et al.: Nongyao, 48, 326 (2009);<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 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>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 N-PHENYL-4-METHOXYBENZYLAMINE (cas# 3526-43-0) is a useful research chemical.<br></p>

<p>Applications A serine derivative. Used in the synthesis of constrained amino acid buildings blocks and their incorporation into biologically active peptidomimetics.<br>References Rew, Y., et al.: J. Med. Chem., 45, 3746 (2002),<br></p>

<p>Applications A metabolite of carboxylic acid.<br>References Bardsley, W., et al.: Biochem. J., 122, 557 (1971), Kim, J., et al.: Biosci. Biotechnol. Biochem., 69, 1331 (2005), Kopka, J., et al.: J. Biotechnol., 124, 312 (2006),<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 3-Mercapto-3-methylbutanoic Acid Ethyl Ester is an intermediate in the synthesis of 3-Mercapto-3-methylbutyl Formate (M253540), which is one of the major odor-active thiol in pan-roasted white sesame seeds.<br>References Czerny, M., et al.: J .Agric. Food Chem., 47, 695 (1999), Steinhaus, M., et al.: Eur. Food Res. Technol., 226, 45 (2007), Tamura, H., et al.: Agric. Food Chem., 2010, 58, 7368 (2010),<br></p>

<p>Applications 5-Methoxy-1-methylindole-2-boronic acid pinacol ester (cas# 1256360-41-4) is a useful research chemical.<br></p>

<p>Applications N-Methyltaurine Sodium Salt is used in the analysis of the changing properties of anionic surfactants and the development of new skin cleansers or soaps. It is the salt of N-Methyltaurine, a compound used in sperm cryopreservation studies. N-Methyltaurine is also used in the studies relating to effects on oxidative damage to erythrocytes via phenylhydrazine.<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 Pokhrel, P.K. et al.: Adv. Exp. Med. Biol., 483, 503 (2000); Miyahara, R. et al.: Fragr. J., 28, 11 (2000); Garde, J.J. et al.: Bio. Repro., 69, 602 (2003);<br></p>

<p>Applications Methyl 4-Methoxybenzoate is also used in the synthesis of oxadiazole-based, GSK-3 inhibitors. Methyl 4-Methoxybenzoate is used in the synthesis of substituted hydrazides for their antitubercular properties.<br>References Lo Monte, F. et al.: Eur.J. Med. Chem., 61, 26 (2013); Gupta, R. et al.: Asian J. Pharm. Clin. Res., 5, 251 (2012);<br></p>

<p>Stability Volatile<br>Applications Labelled 3-Methylfuran (M305443). 3-Methylfuran is a volatile organic compound (VOCs) used as a potential non-intrusive tool for screening of lung cancer.<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 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),<br></p>

<p>Applications 4-(Boc-amino)-1-methylpyrrole-2-carboxylic Acid is an unnatural amino acid for preparing heteroaromatic oligoamides for regulating gen expression in biotechnology.<br>References Baird, E., et al.: J. Am. Chem. Soc., 118, 6141 (1996); White, S., et al.: Nature, 391, 468 (1998)<br></p>

<p>Applications A synthetic intermediate.<br>References Blakemore, R., et al.: Eur. J. Med. Chem., 22, 91 (1987),<br></p>

<p>Impurity Tinidazole EP Impurity A/ Metronidazole EP Impurity A<br>Applications 2-Methyl-5-nitroimidazole (Tinidazole EP Impurity A) is a Floconazole impurity.<br>References Sanderson, H., et al.: Toxicol. Lett., 187, 84 (2009), Kumar, L., et al.: Eur. J. Med. Chem., 45, 817 (2010),<br></p>

<p>Applications Protected L-Tyrosine (T899975), an amino acid, used by cells to synthesize proteins. L-Tyrosine is biologically converted from L-phenylalanine and is in turn is converted to L-DOPA and further converted into the neurotransmitters: dopamine, norepinephrine, and epinephrine.<br>References Rasmussen D.D. et al.: J. Clin. Endocrinol. Metab., 57, 760 (1983); Bagchi, S.P. et al.: Biochem. Pharmacol., 26, 900 (1977)<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Melatonin (M215000).<br>References Reiter, R.J., et al.: J. Biomed. Sci., 7, 444 (2000), Chen, Z., et al.: Am. J. Physiol, 284, 1618 (2003), Barrenetxe, J., et al.: J. Physiol. Biochem., 60, 61 (2004),<br></p>