Aminoacids and derivatives

<p>Applications D-Cysteine is a strong inhibitor of Escherichia coli growth and also functions to provide inorganic sulfates for the sulfation of xenobiotics. D-Cysteine is a non-physiological isomer of L-Cysteine (C995000), and is not involved in protein or glutathione synthesis.<br>References Glazenburg, E., et al.: Biochem. Pharm., 33, 625 (1984); Klassen, C. &amp; Boles, J.: FASEB J., 11, 404 (1997); Soutourina, J., et al.: J. Biol. Chem., 276, 40864 (2001);<br></p>

<p>Stability Hygroscopic<br>Applications O-Acetyl Lacosamide is an impurity of Lacosamide (L098500) which is a potent anticonvulsant.<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 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>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 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 Labelled Dihydrochloride salt of N1-Acetylspermidine which is an analog of Spermidine (S680400), an antineoplastic.<br>References Bergeron, R. et al.: J. Med. Chem, 40, 1475 (1997);<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>

<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 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>Applications N,N-Dimethylaminoethanol Phosphate is a metabolite of Dimethylaminoethanol, a precursor to the neurotransmitter acetylcholine.<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 Ansell, G.B. et al.: Zhur. Evol. Biochim, Fiziol., 15, 249 (1979): Miyazaki, H. et al.: Chem. Pharm. Bull., 24, 763 (1976); Haidar, N.E. et al.: Neurochem. Res., 19, 457 (1994);<br></p>

<p>Impurity Tranexamic EP Impurity D<br>Applications 4-(Aminomethyl)benzoic Acid (Tranexamic EP Impurity D) is a type 2 antifibrinolytic agent.<br>References Markwardt, F., et al.: Prog. Fibrinolysis. 5, 178 (1981); Markswardt, F.. et al.: Thrombosis. Res., 9, 143 (1976);<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 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>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 A metabolite of Baclofen (c).<br>References Ault, B., et al.: Eur. J. Pharmacol., 71, 357 (1981),<br></p>