Aminoacids and derivatives

<p>DEAC, SE (7-Diethylaminocoumarin-3-carboxy acid) is a blue fluorescent dye for labeling amine-containing organisms. λex of DEAC, SE is 330 nm and λem is 402</p>

<p>Applications A metabolite of 3,4-methylenedioxyethylamphetamine (M303975).<br>References Nichols, D., et al.: J. Med. Chem., 29, 2009 (1986), Ricaurte, G., et al.: Brain Res., 446, 165 (1988), Colado, M., et al.: Br. J. Pharmacol., 111, 131 (1994), Helmlin, H., et al.: J. Anal. Toxicol., 20, 432 (1996), Maurer, H., et al.: Ther. Drug Monit., 18, 465 (1996),<br></p>

<p>M04060 - Coriphosphine O</p>

<p>Applications cis-9-Hexadecenoylcarnitine Inner Salt is an L-carnitine metobolite which are often used to diagnose specific inherited metabolic diseases.<br>References Yang, S. et l.: J. Chrom. B., Anal. Tech. Biomed. Life Sci., 857, 251 (2007); Minkler, P. et al.: J. Chrom. B., Anal. Tech. Biomed. Life Sci. 1061, 128 (2017);<br></p>

<p>Applications Used for the counterselection of TRP1, a commonly used genetic marker in the yeast Saccharoyces Cerevisiae. An antimetabolite for the tryptophan pathway in yeast, and is toxic by virtue of its antimetabolite conversion to 5-Fluorotryptophan. It can be used for the selection of tryptophan auxotroophs.<br>References Toyn, J.H., et al.: Yeast, 16, 553, 560 (2000)<br></p>

<p>Applications Betaine-d3 Hydrochloride is a useful gastric acidifier.<br>References Wilcken, D.E., et al.: N. Engl. J. Med., 309, 448 (1983),<br></p>

<p>Applications N-Acetyl-L-Tryptophan, is a derivative of L-Tryptophan (T947210), that can be used as competitive inhibitor to identify and characterize tryptophanases. It can also be used as an NK1 tachykinin receptor antagonist, that may help to develop a novel therapeutic intervention for the treatment of reperfusion injury in acute ischemic stroke.<br>References Turner, R. J., et al.: Neuroscience, 220, 1 (2012);<br></p>

<p>Applications A labelled imidazole, a versatile heterocycle used in the preparation of various biologically active compounds such as the amino acid histidine and is present in many antifungal medication. It is also used extensively as a corrosion inhibitor on transition metals such as copper.<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 Arispe, N. et al.: Biophys. J., 95, 4879 (2008); Troesken, E.R. et al.: Endo. Res., 30, 387 (2004); Otmacic Curkovic, H. et al.: Corr. Sci., 51, 2342 (2009);<br></p>

<p>Applications 6-Aminocaproic Acid Dimer is a reactant with citric acid in the formation of 3-hydroxy-3,4-dicarboxy-butanamide-N-hexanoic acid.<br>References Schou-Pedersen, A. V., et al.: J. Pharm. Biomed. Anal., 107, 333-340 (2015)<br></p>

<p>Stability Hygroscopic<br>Applications R-(+)-Carbidopa is an inhibitor of DOPA decarboxylase, which plays a significant role in the prevention of the conversion of L-DOPA (D533751) to dopamine (D533780). Studies has also indicated the inhibitory effects of towards L-DOPA in human liver prepns and as well as 5-hydroxytryptophan (H975700).<br>References Vogel, W.H. et al.: Arch. Int. Pharmacodyn. Ther. 198, 85 (1972);<br></p>

<p>Applications Glycyl-glycyl-glycine is used as a model peptide for studies of physicochemical parameters and molecular associations of small peptides. It is also used as a copper chelator.<br></p>

<p>Applications N-Glycylglycine is a derivative of Glycine (G615990), a non-essential amino acid that enhances N-methyl-D-aspartate (NMDA) receptor mediated synaptic potentials in the neocortex of rats. Glycine is also being used as adjuvant therapy for the treatment of schizophrenia.<br>References Logan, W. &amp; Snyder, S.: Brain Res., 42, 413 (1972); Rosse, R., et al.: Clin. Neuropharmacol., 12, 416 (1989)<br></p>

<p>Applications Cyclopropyl-d5-amine is labelled Cyclopopylamine (C989140) which can inactivate major human drug-metabolizing cytochromes P450 enzymes.<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 Shaffer C., et al.: J. Am. Chem. Soc., 123, 8502 (2001); Polasek, T., et al.: Brit. J. Clin. Pharmaco., 61, 570 (2006)<br></p>

<p>Impurity L-5-Hydroxytryptophan(Tryptophan EP Impurity D)<br>Applications 5-Hydroxy-L-Tryptophan (L-5-Hydroxytryptophan(Tryptophan EP Impurity D)) is a hydroxylated metabolite of L-Tryptophan (T947210).<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 Gartside, S., et al.: Eur. J. Pharmacol., 179, 103 (1990); Gijsman, H., et al.: J. Clin. Psychopharmacol., 22, 183 (2002),; Schruers, K., et al.: Psychiatry Res., 113, 237 (2002);<br></p>

<p>Applications S-Enantiomer of Baclofen. 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 Lauroylamide Propylbetaine is used cosmetic and hair compositions of enhanced viscosity and clarity.<br>References Anon., et al.: Bull. Chem. Soc. Japan, 41, 1175 (1968),<br></p>

<p>Applications 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 Tranexamic-d2 acid is deuterium labelled tranexamic acid (T714505), which is an antifibrinolytic agent that 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>Applications A labelled 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 CEL and CML are two stable, nonenzymatic chemical modifications of protein lysine residues resulting from glycation and oxidation reactions.<br>References Fu, M.X., et al.: J. Biol. Chem., 271, 9982 (1996), Ahmed M.U., et al.: Biochem.J., 324, 565 (1997), Schleicher, E.D., et al.: J. Clin. Invest., 99, 457 (1997), Shibayama, R., et al.: Diabetes, 48, 1842 (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 L-Kynurenine is a tryptophan metabolite which is a precursor of kynurenic acid (K660500) and an antagonist of N-methyl-aspartate receptor.<br>References Swartz, K., et al.: J. Neurosci., 10, 2965 (1990);, Hasegawa, H., et al.: Anal. Bioanal. Chem., 377, 886 (2003); Tsai, Y., et al.: Anal. Biochem., 319, 34 (2003); Mitsuhashi, S., et al.: Anal. Chim. Acta, 584, 315 (2007)<br></p>

<p>Stability Air Sensitive, Light Sensitive<br>Applications 5-Hydroxyindole-3-acetic acid is an impurity of chlorpheniramine (C424300), an antihistaminic agent.<br>References Josko, J., et al.: Annal. Acad. Med. Siles., 66, 13, (2012); Carson, R.P., et al.: Human. Molec. Genetics., 22, 140 (2013);<br></p>

<p>Applications Lacosamide is a medication used for the adjunctive treatment of partial-onset seizures and diabetic neuropathic pain. Lacosamide is a potent anticonvulsant.<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 Lees, G., et al.: Brain Res., 612, 190 (1993), Kuo, C., et al.: Mol. Pharmacol., 51, 1077 (1997), Barton, M., et al.: Epilepsy Res., 47, 217 (2001), Beyreuther, B., et al.: Eur. J. Pharmacol., 539, 64 (2006), Beyreuther, B., et al.: CNS Drug Rev., 13, 21 (2007),<br></p>

<p>Applications α-Methyldopa Methyl Ester is an impurity in the synthesis of L-α-Methyl DOPA Methyl Ester Hydrochloride which is a Methyldopa angiotensin II analog.<br>References Karle, I., et al.: Biochemistry, 29, 6747 (1990), Biron, E., et al.: Bioorg. Med. Chem., 12, 1279 (2004),<br></p>

<p>Applications A metabolite of Baclofen (c).<br>References Ault, B., et al.: Eur. J. Pharmacol., 71, 357 (1981),<br></p>

<p>Applications A metabolite of 5-Hydroxytryptamine, also known as Serotonin (S274990).<br>References Uutela, P. et al.: Anal. Chem., 81, 8417 (2009); Koehle, C. et al.: Biochem. Pharmacol., 69, 1397 (2005); Krishnaswamy, S. et al.: Xenobiotica, 33, 169 (2003);<br></p>

<p>Applications Epi-Lacosamide is an impurity of Lacosamide (L098500), a medication used for the adjunctive treatment of partial-onset seizures and diabetic neuropathic pain. Lacosamide is a potent anticonvulsant.<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 Choi, D., et al.: J. Med. Chem., 39, 1907 (1996), Morieux, P., et al.: Bioorg. Med. Chem., 16, 8968 (2008),<br></p>