Amino Acids (AA)

<p>Applications α-Methyl-L-phenylalanine is used to prepare hippuryl-α-methylphenylalanine and hippuryl-α-methylphenyllactic acid as substrates for carboxypeptidase A. It is also used in the synthesis of high affinity tachykinin NK2 receptor antagonists.<br>References Lee, M., et al.: Bioorg. Med. Chem., 8, 815 (2000); Boyle, S., et al.: Bioorg. Med. Chem., 2, 101 (1994)<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 3-Chloro-2-methyl-1-propene has been used in the synthesis of 2-S-substituted pyrimidines as antimetabolites of nucleic acid precursors for cancer therapy.<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 Kaldrikyan, M.A., Melik-Ohanjanyan, R.G.: Hayastani Kimiakan Handes, 67, 321 (2014)<br></p>

<p>Applications D-Lysine Methyl Ester is a protected form of D-Lysine (L468930). D-Lysine is the unnatural isomer of L-Lysine (L468895) that has the ability to reduce non-enzymatic glycation in vitro. D-Lysine also exists as polypeptide chains of poly-D-lysine, a nonspecific adhesion-promoting molecule that has the potential to be a polymeric drug carrier.<br>References Chen, Q. et al.: J. Biol. Chem., 269, 26602 (1994); Sensi, M., et al.: Diabetologia, 36, 797 (1993); Vermeersch, H. &amp; Remon, J.: J. Control. Rel., 32, 225 (1994)<br></p>

<p>Applications L-Asparagine-d3 Hydrate is an isotope labelled L-Asparagine Hydrate, a naturally occurring amino acid that is not a essential for humans and can be synthesized from central metabolic pathway intermediates.<br>References Burda, P., et al.: Biochim. Biophys. Acta., 1426, 239 (1999); Yamane, H., et al.: Animal. Sci. J., 80, 286 (2009);<br></p>

<p>Applications (R)-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic Acid, is an amino acid building block used in peptide synthesis. With a growing peptide drug market the fast, reliable synthesis of peptides is of great importance.<br></p>

<p>Applications N-Boc-L-proline is a useful synthetic intermediate. It is used to synthesize Daclatasvir (D101500) which nhibits the HCV protein NS5A. Daclatasvir (D101500) can be used as a drug candidate for the treatment of hepatitis C (HCV).<br>References Gao, M., et al.: Nature, 465(7294), 96 (2010); Bell, T. W., Chem. Med. Chem., 5(10), 1663 (2010);<br></p>

<p>Applications The main labelled metabolite of o-xylene.<br>References Gregus, Z., et al.: Drug Metab. Dispos., 26, 1082 (1998), Gregus, Z., et al.: Xenobiotica, 29, 547 (1999), Gonzalez-Reche, L., et al.: Arch. Toxicol., 77, 80 (2003),<br></p>

<p>Applications 6-Methyl-2-heptanol is an intermediate used to prepare tri- and tetrasubstituted imidazoles as highly potent and specific ATP-​mimetic inhibitors of p38 MAP kinase.<br>References Laufer, S., et al.: J. Med. Chem., 51, 4122 (2008)<br></p>

<p>Applications N-Carbamyl-L-glutamic Acid has been shown to have protective effects against ammonia intoxication and is used in the treatment of acute hyperammonemia.<br>References Paik, W.K. et al.: Life Sci., 15, 1189 (1974); O'Connor, J.E. et al.: Eur. J. Pediat., 148, 540 (1989); Lee, J.H. et al.: Biochem. Biophys. Res. Chem., 248, 391 (1998);<br></p>

<p>Stability Hygroscopic<br>Applications 3-Indolepropionic-d2 acid is deuterium labelled 3-Indolepropionic acid (I627170). 3-Indolepropionic acid is a deamination product of Tryptophan (T947200) that protects the hippocampus (studied in gerbils) from ischemic damage and oxidative stress. It’s ability to protect the neurons in this way is attributed to its potent antioxidative effects. 3-Indolepropionic acid is also hypothesized to have protective effects on the thyroid gland.<br>References Hwang, I., et al.: J. Neurosci. Res., 87, 2126 (2009); Karbownik, M., et al.: J. Cell. Biochem., 95, 131 (2005)<br></p>

<p>Applications L-(+)-2-Phenylglycine is a derivative of Glycine (G615990), the smallest of all the amino acids, and is also used to treat schizophrenia, stroke, and benign prostatic hyperplasia. L-(+)-2-Phenylglycine is also used as an N-linked side chain of an SMTP (Stachybotrys microspora tripenyl phenols) congener, which was potent in enhancing plasminogen activation in S. microspora.<br>References Gusev, E., et al.: Cerebrovasc. Dis., 10, 49 (2000); Koide, H., et al.: J. Antibiot., 65, 91 (2012); Rosse, R., et al.: Clin. Neuropharmacol., 12, 416 (1989); Tuszynski, G., et al.: Lab. Invest., 70, 228 (1994)<br></p>

<p>Applications Ac-Glu-OMe (cas# 17015-15-5) is a useful research chemical.<br></p>

<p>Applications D-Cysteine Hydrochloride Monohydrate is used as a reactant in the expedient synthesis of electronically modified luciferins for bioluminescence imaging.<br>References McCutcheon, D., et al.: J. Am. Chem. Soc., 134, 7604 (2012);<br></p>

<p>Stability Moisture Sensitive<br>Applications A biologically active, cell permeable, but nonphysiologic ceramide analog. It inhibits cell proliferation and induces monocytic differentiation of HL-60 cells and induces apoptosis. It stimulates protein phosphatase 2A and activates MAP Kinase2.<br>References Inoue, T., et al.: J. Biol. Chem., 284, 9566 (2009), Kang, J., et al.: Bioorg. Med. Chem., 17, 1498 (2009), Rath, G., et al.: Int. J. Biochem. Cell Biol., 41, 1165 (2009),<br></p>

<p>Impurity Flumazenil EP Impurity E<br>Applications Ethyl 5-Methyl-6-oxo-5,6-dihydro-4H-benzo[f]imidazo[1,5-a][1,4]diazepine-3-carboxylate (Flumazenil EP Impurity E) is used in the biological studies and preparation of imidazobenzodiazepines as probes for diazepaminsensitive receptor pharmacophore.<br>References Zhang, P., et al.: J. Med. Chem., 38, 1679 (1995)<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Catecholamines.<br>References Kopin, I.J., et al.: J. Biol. Chem., 236, 2109 (1961), Short, F.W., et al.: J. Med. Pharm. Chem., 5, 642 (1962)<br></p>