Amino Acids (AA)

<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 12-(t-Boc-amino)-1-dodecanol (cas# 67341-03-1) is a compound useful in organic synthesis.<br></p>

<p>Applications 1,2-Dichloro-2-methylpropane (cas# 594-37-6) is a useful research chemical.<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></p>

<p>Applications 1-Chloro-3-methoxypropane (cas# 36215-07-3) is a compound useful in organic synthesis.<br></p>

<p>Stability Volatile<br>Applications N-Isopropyl-N-methylamine (cas# 4747-21-1) is a compound useful in organic synthesis.<br> E0<br></p>

<p>Applications A non-essential amino acid found in food sources and dietary supplements. Its conjugate base D-aspartate has potential use as a a therapeutic agent in the treatment of schizophrenia-related symptoms.<br>References Errico, F. et al.: J. Neurosci., 28, 10404 (2008); Denu, J.M. et al.: Biochem., 34, 3396 (1995); Chen, P.E. et al.: Mol. Pharmacol., 67, 1470 (2005);<br></p>

<p>Applications 2-Methoxyphenol-3,4,5,6-d4 (CAS# 7329-52-4) is a useful isotopically labeled research compound.<br></p>

<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 1-Chloro-4-methoxybutane (cas# 17913-18-7) is a compound useful in organic synthesis.<br></p>

<p>Stability Light Sensitive<br>Applications α-Methacrylic acid is used in chemistry as a stabilizing agent, forming a thin capping layer on the surface of nanoparticles. α-Methacrylic acid is also used as a surfactant, so that control is maintained during nanocrystal growth. α-Methacrylic acid is also used as a chelating agent.<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 Peng, W., et al.: J. Cryst. Growth, 279, 454 (2005); Qu, S., et al.: Appl. Phys. Lett., 80, 3605 (2002); Zhao, G., et al.: Phys. C: Supercond., 468, 2317 (2008)<br></p>

<p>Applications Methyl 5-(Ethylsulfonyl)-2-methoxybenzoate (cas# 62140-67-4) is a useful research chemical.<br></p>

<p>Applications Hydroxyprolines are valuable chiral building blocks for organic synthesis of pharmaceuticals. Several microorganisms producing proline trans-4- and cis-3-hydroxylase were discovered and these enzymes were applied to the industrial production of trans-4- and cis-3-hydroxy-L-proline.<br>References Lawrence, C., et al.: Biochem. J., 313, 185 (1996), Mori, H., et al.: J. Bacteriol., 179, 5677 (1997), Clifton, I., et al.: Eur. J. Biochem., 268, 6625 (2001),<br></p>

<p>Applications Labelled analogue of an essential amino acid found in naturally produced peptides. Unlike its stereoisomer, L-tryptophan, it is not used in structural or enzyme proteins.<br>References Karunakaran, S.et al.: Bochem. J., 414, 343 (2008); Pallaghy, P.K. et al.: Biochem., 38, 11553 (1999);<br></p>

<p>Applications A naturally occurring nitrostable secondary amine found in tabacco smoke condensate.<br>References Singer, G.M. et al.: J. Agric. Food Chem. 24, 553(1976); Bush, L. P. et al.: Can. J. Plant Sci. 50, 289(1970).<br></p>

<p>Applications 3-(4-Methylphenyl)-3-(trifluoromethyl)diaziridine (cas# 87736-82-1) is a compound useful in organic synthesis.<br></p>

<p>Applications 5-methoxypentanoic acid (cas# 70160-05-3) is a useful research chemical.<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>Stability Hygroscopic<br>Applications (R)-3-Carboxy-2-hydroxy-N,N,N-trimethylpropan-1-aminium chloride is an important co-factor of mammalian mitochondrial energy metabolism. It is also a good active ingredient for dry-skin.<br>References Geier, David A., et al.: Neurochem. Res., 38(11), 2336-2341 (2013);Tanno, Osamu, et al.: Fragrance J., 33(8), 82-85 (2005);<br></p>

<p>Impurity Duloxetine EP Impurity B<br>Applications A Duloxetine intermediate. Duloxetine EP Impurity B.<br></p>

<p>Applications 1-Ethyl-1-methylcyclopentane, is one of the chemical components of Gas-Phase organic carbon emissions from motor vehicles. It is also a volatile component of frying oils.<br>References Gentner, D. R., et al.: Environ. Sci. Tech., 47, 11937 (2013); Prevot, A. Frying Food, 155 (1988);<br></p>

<p>Applications L-alloisoleucine is a stereo-isomer of L-isoleucine (I820175) and is produced as a byproduct of isoleucine via transamination.  L-allo-isoleucine has been suggested to induce epithelial β-defensin expression. In addition, L-allo-isoleucine is utilized in the biosynthesis pathway for coronamic acid.<br>References Fehlbaum, P., et al.: Proc. Natl. Acad. Sci. USA 97, 12723 (2000); Parry, R. J., et al.: J. Am. Chem. Soc. 113, 1849 (1991)<br></p>

<p>Applications 2-Methylindoline is an intermediate in the production of various indole derivatives<br>References Severino, B., et al.: Bioorg. Med. Chem., 16, 6009 (2008); Zlotos, D., et al.: J. Med. Chem., 52, 826 (2009);<br></p>

<p>Applications 4-methyl-2-(piperidin-4-yl)pyridine (cas# 1260886-47-2) is a useful research chemical.<br></p>

<p>Applications 5-Methoxy-N-methyl-N-(1-methylethyl)-α-oxo-1H-indole-3-acetamide is an intermediate used in the synthesis of 5-Methoxy-N-methyl-N-isopropyl Tryptamine (M271680), which is a psychedelic tryptamine related to N-methyl-N-isopropyltryptamine. 5-Methoxy MiPT potently inhibits the re-uptake of the monoamines serotonin and norepinephrine but does not affect dopamine re-uptake. 5-Methoxy MiPT has no effect on the release of monoamines from rat brain synaptosomes. This product is intended for forensic and research applications.<br>References Katagi, M., et al.: Jpn. J. Forensic Toxicol., 20, 303 (2002), Meatherall, R., et al.: J. Anal. Toxicol., 27, 313 (2003), Wilson, J., et al.: Forensic Sci. Int., 148, 31 (2005), Kamata, T., et al.: Drug Metab. Dispos., 34, 281 (2006),<br></p>

<p>Applications L-Tryptophan-d3 is a deuterium labelled amino acid, which is a protein building block. The unlabelled L-Tryptophan (T947210) is also available.<br>References Goze, C., et al.: Eur. J. Pharmacol., 643, 153 (2010), Bhandare, P., et al.: J. Chem. Pharm. Res., 2, 372 (2010),<br></p>

<p>Stability Hygroscopic<br>Applications Labelled 3-Aminoisobutyric Acid (A611585). Substituted β-alanines. Used for preparation and isolation of D(-)-β-aminoisobutyric acid.<br>References Kakimoto, Y., et al.: J. Biol. Chem., 236, 3288 (1961),<br></p>

<p>Applications A metabolite of Crotonaldehyde.<br>References Gray, J.M., et al.: Xenobiotica, 1, 55 (1971), Chung, F., et al.: Mutat. Res., 424, 71 (1999), Smith, C., et al.: Food Chem. Toxicol., 38, 637 (2000), Pan, J., et al.: Chem. Res. Toxicol., 15, 367 (2002),<br></p>

<p>Applications (4-Methylphenyl)-2-pyridinylmethanone is a useful reactant in organic synthesis.<br>References Hu, Zhiyuan, et al.: Org. &amp; Biomol. Chem., 16(31), 5653-5660 (2018);Liao, Yang, et al.: J. of Organometallic Chem., 881, 1-12 (2019)<br></p>

<p>Applications 3-Methylindole metabolite.<br>References Skordos, K., et al.: Chem. Res. Toxicol., 11, 741 (1998), Lanza, D., et al.: Drug Metab. Disposition, 29, 950 (2001), Hoenicke, K., et al.: J. Agric. Food Chem., 50, 4303 (2002),<br></p>

<p>Applications H-D-Ala-D-Leu-OH (cas# 67392-69-2) is a useful research chemical.<br></p>

<p>Applications (E)-3-Methoxy-5-styrylphenol (cas# 35302-70-6) is a useful research chemical.<br></p>