Aminoacids and derivatives

<p>Stability Decomposes under acidic condition, Hygroscopic<br>Applications 1,1’-Ethylidenebis[L-tryptophan] is a L-tryptophan (T947210) contaminant found in the peripheral blood mononuclear cells from patients with functional somatic syndromes.<br>References Barth, H., et al.: Clin. Experiment. Inmmunol., 126, 187 (2001); Simat, T.J., et al.: Adv. Experi. Med. Biol., 467, 469 (1999);<br></p>

<p>Applications 2-Hydroxy L-Tryptophan is a metabolic intermediate in the biosynthesis of the neurotransmitters serotonin and melatonin from Tryptophan.<br>References Southan, M.D., et al.: Med. Chem. Res., 6, 343 (1996);<br></p>

<p>Applications Baclofen-d4, is the labeled analogue of Baclofen (B108000), a specific GABA-B receptor agonist. Muscle relaxant (skeletal).<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 Ahuja, S., et al.: Anal. Profiles Drug Subs., 14, 527 (1985), Brogden, R.N., et al.: Drugs, 8,1 (1974)<br></p>

<p>Applications A lipid biomarker for stable and unstable heart disease.<br>References Gaziano, J., et al.: Circulation, 96, 2520 (1997), Thomas, A., et al.: Anal. Chem., 82, 6687 (2010),<br></p>

<p>Stability Hygroscopic<br>Applications 4-Ethylcatechol is one of the main phenolic off-flavour markers in French ciders.<br>References Alonso-Salces, R., et al.: Anal. Bioanal. Chem., 379, 464 (2004), Xu, Y., et al.: J. Agr. Food Chemi., 55, 3051 (2007),<br></p>

<p>Stability Hygroscopic<br>Applications Antifibrinolytic agent; blocks lysine binding sites of plasminogen. Hemostatic.<br>References Andersson, et al.: Scand. J. Haematol. 2, 230 (1965), Melander, B., et al.: Acta Pharmacol. Toxicol., 22, 340 (1965), Bonnar, J., et al.: Br. Med. J., 313, 579 (1996), Dunn, C.J., et al.: Drugs, 57, 1005 (1999),<br></p>

<p>Stability Hygroscopic<br>Applications L-Glutamic Acid, Magnesium Salt Hydrobromide is an metabolite of L-Glutamic acid, a 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. L-Glutamic Acid, Magnesium Salt Hydrobromide has also been investigated for sedative properties as a tranquilizer.<br>References McEntee, W., et al.: Psychopharmacology, 111, 391 (1993), Manev, H., et al.: Mol. Pharmacol., 36, 106 (1989), Hamanaka, T., et al.: Toho. Igakkai. Zasshi., 20, 663 (1973);<br></p>

<p>Applications L-Glutamine-2,3,3,4,4-d5 is the isotope labelled analog of L-Glutamine (G597000); 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 4-Aminobutyl-d8 Guanidine is the labelled analog of the decarboxylation product of the amino acid arginine (A769500) and also an intermediate in polyamine biosynthesis.<br>References Golding, B.T., et al.: Biochem. Soc. Trans., 22, 391S (1994);<br></p>

<p>Applications Minor Cisapride (C496400) metabolite.<br>References Meuldermans, W., et al.; Drug Metab. Disposition, 16, 410 (1988), Lowry J., et al.; Clin. pharmacol. ther., 73, 209 (2003), Shao L., et al.: Bioorg. Med. Chem. Lett., 19, 5679 (2009),<br></p>

<p>Applications Labelled analogue of Glycine, a non-essential amino acid for human development. Glycine is an inhibitory neurotransmitter in spinal cord, allosteric regulator of NMDA receptors.<br>References Scott, D. et al.: J. Neurosci., 21, 3063 (2001); Laube, B. et al.: Neuropharmacology, 47, 994 (2004); Papadakis, M. et al.: J. Biol. Chem., 279, 14703 (2004); Chen, P. et al.: Mol. Pharmacol., 67, 1470 (2005); Wolosker, H. et al.: Mol. Neurobiol., 36, 152 (2007);<br></p>

<p>Applications Intermediate in the enzymatic oxidation of choline to betaine.<br>References J. Biol. Chem., 234, 1171 (1959)<br></p>

<p>Stability Hygroscopic<br>Applications 3,4-Dihydroxybenzaldehyde (cas# 139-85-5) is a compound useful in organic synthesis.<br></p>