Amino Acids (AA)

<p>Applications N-Methyl-N-trimethylsilylacetamide, is a powerful silylating agent for polar compounds.<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 Melanie MacGregor-Ramiasa et. al; Acta biomaterialia, 56, undefined (2017-2-25)<br></p>

<p>M02962 - H-Thr-OH</p>

<p>Applications L-Methionine-3,3,4,4-d4 (CAS# 67866-75-5) is a useful isotopically labeled research compound.<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 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 L-Glucose is the enantiomer of D-Glucose (G595000), a naturally occurring carbohydrate used in an abundance of cellular processes. L-Glucose is a synthetic sugar used in the formation of L-Glucose Pentaacetate (G596510), a potential therapeutic agent regarding type II diabetes. In addition, L-glucose can be used as a colon cleansing agent for before a colonoscopy procedure.<br>References Malaisse, W. et al.: Int. J. Mol. Med., 2, 383 (1998); Raymer, G. et al.: Gastrointest. Endosc., 58, 30 (2003); Wang, R., et al.: J. Mol. Catal. B. Enz., 56, 131 (2009),<br></p>

<p>Applications 5-Methylfuran-2(3H)-one is an aromatic compound responsible for the aroma of caramel, dried and roated nori, wine, and brewed coffee.<br>References Paravisini, L., et. al.: Flavour Frag. J., 27, 424 (2012); Shu, N., Shen, H.: Flavour Frag. J., 27, 157 (2012); Chin, S., et. al.: J. Chrom. A, 1218, 7487 (2011)<br></p>

<p>Applications 2-Methylresorcinol (cas# 608-25-3) 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 N-Acetyl-L-phenylalanine is an protected analogue of L-Phenylalanine (P319415), an essential amino acid produced for medical, feed, and nutritional applications such as in the preparation of Aspartame.<br>References Sriram, S., et al.: J. Med. Chem., 56, 2540 (2013); Parker, B.M., et al.: J. Biotech., 155, 396 (2011);<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 L-Aspartic Acid is a non-essential amino acid found in food sources. L-Aspartic Acid is one of the 20 proteinogenic amino acids; the building blocks of proteins. Its conjugate base L-aspartate is an excitatory neurotransmitter in the central nervous system.<br>References Ager, D.J. et al.: J. Mol. Catal. Enzym., 11, 199 (2001); Velisek, J. et al.: Cze. J. Food. Sci., 24, 1 (2006); Nagahama, M. et al.: Cell Tiss. Res., 318, 483 (2004);<br></p>

<p>Applications Ethionine-induced inhibition of protein synthesis and lowering of ATP level in the liver.<br>References Rotig, A., et al.: Lancet, 356, 391 (2000), Forsgren, M., et al.: Biochem. J., 382, 519 (2004), Johnson, A., et al.: J. Biol. Chem., 280, 31397 (2005), Horvath, R., et al.: Neurology, 66, 253 (2006), Mollet, M., et al.: J. Clin. Invest., 117, 765 (2007),<br></p>

<p>Applications This compound contains up to 25% of the two other regioisiomers.<br></p>

<p>Applications Fmoc-Ser(TBDMS)-OH (cas# 146346-81-8) is a useful research chemical.<br></p>

<p>Applications L-Alanine-d3 is the labeled analogue of L-Alanine (A481500), which is used to make in-vivo measurement of glucose and alanine metabolism in studies of patients with diabetes. L-Alanine is a non-essential amino acid for human development. L-Alanine is one of the 20 amino acids encoded by the genetic code.<br>References Bier, D.M. et al.: Diabetes, 26, 1005 (1977); Capaldo, B. et al.: J. Clin. Endocrinol. Metab., 71, 1220 (1990); Giacca, A. et al.: Diabetes, 47, 1763 (1998)<br></p>

<p>Applications N-[(Benzyloxy)carbonyl]glycylglycine is a reagent in the synthesis of Glycylglycyl-L-tyrosine (G718500), which is a fungal tyrosinases and their capability to oxidize peptide-bound tyrosine residues is important in a view of applicability of tyrosinases.<br>References Bowness, J., et al.: Biochem. J., 53, 620 (1953), Cuff, M., et al.: J. Mol. Biol., 278, 855 (1998), Kubo, I., et al.: Bioorg. Med. Chem., 12, 5349 (2004),<br></p>

<p>Stability Very Hygroscopic<br>Applications A potent inhibitor of NO synthase of adrenal glands, brain, and vascular endothelial cells.<br>References Vallence, P., et al.: Lancet, 339, 572 (1992),<br></p>

<p>Stability Moisture Sensitive<br>Applications 4-chloro-5-fluoro-2-methoxypyrimidine (cas# 1801-06-5) is a useful research chemical.<br></p>

<p>Stability Hygroscopic<br>Applications 3-Methyl-2-oxobutyric acid calcium salt (cas# 51828-94-5) is a useful research chemical.<br></p>

<p>Applications 3-Ethyl-2-methyl-2-(3-methylbutyl)-oxazolidine is a oxazolidine-based moisture scavenger for use in urethane coatings, sealants and elastomers.<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 An efficient reagent for aminoacylations. Used in the synthesis of chiral Pilocarpine analogs via a C-8 ketone intermediate.<br>References Enz, A., et al.: Life Sci., 52, 513 (1993), Felder, C., et al.: J. Med. Chem., 43, 4333 (2000),<br></p>

<p>Stability Hygroscopic<br>Applications D-Histidine, Hydrochloride Monohydrate was a useful reagent for the preparation of diastereomeric histidine-containing dipeptides to analyze lipophilicity and ionization constants.<br>References Vistoli, G., et al.: Chirality, 24, 566 (2012)<br></p>

<p>Applications Labelled DL-Serine is used in the synthesis of novel tryptoline derivatives as IDO (indoleamine 2,3-Deoxygenase) inhibitors, for potential use in Alzheimer’s treatment.<br>References Tanaka, M. et al.: Bioorg. Med. Chem., 21, 1159 (2013);<br></p>

<p>Applications 6-Methylheptanoic acid is used as a reagent to synthesize analogues of Eponemycin, an antibiotic that also exhibits anti-angiogenic activity by inhibiting proteasome function. 6-Methylheptanoic acid naturally occurs as a component of the scent chemical of the brushtail possum.<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 McLean, S., et al.: J. Chem. Ecol., 38, 1318 (2012); Oikawa, T., et al.: Biochem. Biophys. Res. Comm., 181, 1070 (1991); Sin, N., et al.: Bioorg. Med. Chem., 6, 1209 (1998)<br></p>

<p>Applications N-Succinimidyl 3-Methoxy-4-nitrobenzoate (cas# 2006277-78-5) is a useful research chemical.<br></p>

<p>Applications Fmoc-n-me-lys(boc)-oh<br></p>

<p>Applications 4-Methylimidazole is a monomethylated imidazole that can be used as a building block in the preparation of a wide range of biologically active compounds. 4-Methylimidazole is a product which results from the interaction of reducing sugars with ammonia. 4-Methylimidazole showed convulsant activity in animals and is listed as a possible carcinogen.<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 Nishie, K. et al.: Toxicol. Appl. Pharmacol., 14, 301 (1969): Cunha, S.C. et al.: J. Food Comp. Anal., 24, 609 (2011); Chan, P.C. et al.: Arch. Toxicol., 82, 55 (2008);<br></p>

<p>Applications A protected glutamic acid for use in peptide synthesis.<br>References Takahashi, M., et al.: J. Exp. Biol., 200, 401 (1997), Michaelis, E., et al.: Prog. Neurobiol., 54, 369 (1998), Koch, H., et al.: Mol. Pharmacol., 55, 1044 (1999), O'Kane, R., et al.: J. Biol. Chem., 274, 31891 (1999),<br></p>

<p>H-Leu-Asp-OH is a phenolic compound that is synthesized by the esterification of L-leucine and L-aspartic acid. The solubility of H-Leu-Asp-OH in organic solvents, such as dichloromethane and ethanol, is higher than in water. This product can be used as a solvent for other substances and as a boosting agent for other products during clinical trials. It has been shown to have health effects on humans, but more research is needed to determine any possible side effects or long term health problems.</p>

<p>N,N-Dimethyl-histidine is a zwitterion formed by the combination of two molecules of the amino acid histidine. It is a derivative of methylhistidine, which is a fungal metabolite. N,N-Dimethyl-histidine has been shown to be an injectable form of methylhistidine and can be used as a metabolic marker in animals and humans. The radioactivity level of N,N-Dimethyl-histidine can be measured using an electron spin resonance spectrometer. N,N-Dimethyl-histidine also has oxidizing properties that have been demonstrated in the oxidation of l-(3-[14C]methylaminopropyl)-3-[14C]methacryloxymethyl)benzene.</p>

<p>2-(2-Methoxyphenoxy)-2-methylpropanoic acid is a versatile building block that can be used as a reagent in organic synthesis. It is also an intermediate for the synthesis of various pharmaceuticals, including 2-methoxyestradiol and methoxymacroin. This compound is commercially available from chemical suppliers and can be used to synthesize other compounds with a variety of functional groups.</p>

<p>4-Methoxy-1-indanone is a quinoline derivative that is used as an intermediate for the synthesis of a number of bioactive molecules, such as gephyrotoxin (a potent neurotoxin) and oxime derivatives. 4-Methoxy-1-indanone has been shown to be activated by metal ions and oximes to form iminium cations. These cations are then converted into chloride or carbonic anions by dehydrogenase enzymes, which are important in the metabolism of carbohydrates in living organisms.</p>

<p>2-Ethoxy-4-methoxybenzaldehyde is a volatile compound that has been shown to have medicinal properties. It is used to analyze the presence of alcohols and aldehydes in various products. The sensitivity of this compound was optimized by using an analytical method that involved solid phase microextraction (SPME) followed by gas chromatography (GC). The carcinogenicity of this compound was determined by exposing it to rats in a 2 year study, which showed no evidence of carcinogenicity. This compound can also be used as a phenolic or microextraction reagent for the headspace analysis of volatile compounds.</p>

<p>Acetyl-L-tyrosine amide is an analog of L-tyrosine that is used as an active substance in the field of uv absorption. Acetyl-L-tyrosine amide reacts with sodium hydroxide to form a soluble salt, which has been shown to have binding constants that are comparable to those of human serum. This compound also has fluorescence properties and can be used for the determination of neutral pH. The reaction products formed between acetyl-L-tyrosine amide and sodium hydroxide are hydrolyzed by acids and yield a molecule with rotameric properties. These rotameric properties can be modeled using a protein model without affecting the stability or function of the protein.</p>