Amino Acids (AA)

<p>Applications 2-Chloro-3-methylaniline (cas# 29027-17-6) is a useful research chemical.<br></p>

<p>Applications N-(4-Bromo-2-methylphenyl)-2-chloroacetamide (cas# 96686-51-0) is a useful research chemical.<br></p>

<p>Stability Light Sensitive<br>Applications 2-Methyl-2-propen-1-ol has been used in the synthesis of C2-methyl-1,2-di-O-hexadecylglycerophosphocholine.<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 Bittman, R., Witzke N.M.: Chem. Physics Lipid, 50, 99 (1989)<br></p>

<p>Applications 3-Methyl-3-hepten-5-one is a reagent used to prepare fused nitrogen-heterocycles from β-enamino nitrile and α,β-unsaturated carbonyl compounds.<br>References Nemes, P., et al.: Synlett., 2, 222 (1999)<br></p>

<p>Applications Labelled 1-Methyl-2-pyrrolidinone (M326120). It is a versatile industrial solvent. NMP is currently approved for use only in veterinary pharmaceuticals. The determination of the disposition and metabolism of NMP in the rat will contribute toward understanding the toxicology of this exogenous chemical which man may likely be exposed to in increasing amounts.<br>References Southwell, D., et al.: J. Pharm. Pharmacol., 33, 3 (1981), Barry, W., et al.: J. Invest. Dermatol., 82, 49 (1984),<br></p>

<p>Applications 3-Methyl-1,3-butanediol is a useful compound in carbon oxygen coupling reactions.<br></p>

<p>066621 - 5-Amino-4-oxopentanoic acid hydrochloride</p>

<p>Stability Volatile<br>Applications Labelled 3-Methylfuran (M305443). 3-Methylfuran is a volatile organic compound (VOCs) used as a potential non-intrusive tool for screening of lung cancer.<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 McWilliams, et al.: Curr. Oncol. Rep., 4, 487 (2002), Buszewski, B., et al.: Biomed. Chromatogr., 21, 553 (2007), Ligor, T., et al.: J. Breath. Res., 1, 1 (2007),<br></p>

<p>Applications N-3-(Sulfopropyl)-3-methoxy-5-methylaniline is used as a reagent for the evaluation of basic property and long-term stability of reagents for enzymically assaying triglyceride, cholesterol and uric acid.<br>References Yamaguchi, T., Iryo to Kensa Kiki-Shiyaku., 3, 591-597 (2007).<br></p>

<p>Applications L-Threonic acid calcium salt is the salt of L-Threonic acid, a naturally occurring compound that can be found in the leaves of Pelargonium crispum. L-Threonic acid is also the degradation product of Dehydroascorbate (DHA), a metabolite of Vitamin C (A786990).<br>References Helsper, J. &amp; Loewus, F.: Plant Phys., 69, 1365 (1982); Koch, C. &amp; Biaglow, J.: J. Cell. Phys., 94, 299 (1978); Nielsen J., et al.: J. Agr. Food Chem., 49, 2998 (2001)<br></p>

<p>Applications 4-Amino-2-methyl-5-pyrimidinemethanesulfonic acid is used in the biosynthesis of Thiamine (T344185) in yeast.<br>References White, R., et al.: Journal of the American Chemical Society, 104, 4934 (1982).<br></p>

<p>Applications N-Methylformanilide is an aromatic reagent used in the synthesis of dye-sensitized solar cells. Also used in the synthesis of potent tyrosinase inhibitors.<br>References Meyer, T et al.: J. Org. Chem., 77, 3704 (2012); Nihei, K. et al.: Bioorg. Med. Chem. Lett., 14, 681 (2004);<br></p>

<p>Applications Methyl 4-Methoxybenzoate is also used in the synthesis of oxadiazole-based, GSK-3 inhibitors. Methyl 4-Methoxybenzoate is used in the synthesis of substituted hydrazides for their antitubercular properties.<br>References Lo Monte, F. et al.: Eur.J. Med. Chem., 61, 26 (2013); Gupta, R. et al.: Asian J. Pharm. Clin. Res., 5, 251 (2012);<br></p>

<p>Applications 4-(Boc-amino)-1-methylpyrrole-2-carboxylic Acid is an unnatural amino acid for preparing heteroaromatic oligoamides for regulating gen expression in biotechnology.<br>References Baird, E., et al.: J. Am. Chem. Soc., 118, 6141 (1996); White, S., et al.: Nature, 391, 468 (1998)<br></p>

<p>Applications 2-Amino-6-methylpyrimidin-4(3H)-one (cas# 3977-29-5) is a useful research chemical.<br></p>

<p>Applications 2-Bromo-3-methylbutenoic Acid Methyl Ester (cas# 51263-40-2) is a compound useful in organic synthesis.<br></p>

<p>Applications Boc-(S)-3-Amino-4-(2,4,5-trifluorophenyl)butyric Acid is a reactant used in the preparation of peptidase IV inhibitors.<br>References Park, W. et al.: Bioorg. Med. Chem. Lett., 21, 1366 (2011);<br></p>

<p>Impurity Ciclopirox EP Impurity B/ USP Ciclopirox Related Compound B<br>Applications 6-Cyclohexyl-4-methyl-2H-pyran-2-one (Ciclopirox EP Impurity B) is a a dialkylated pyranone derivative.<br></p>

<p>Applications 3-Bromo-5-methoxypyridine<br></p>

<p>Applications 6-Methoxy-N2-methylpyridine-2,3-diamine dihydrochloride (cas# 83732-72-3) is a useful research chemical.<br></p>

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

<p>Applications 3-(methyl-d3)-1H-Indole-2,4,5,6,7-d5 is the labeled analogue of 3-Methylindole (M313470), a naturally abundant pneumotoxin, found primarily in mammalian feces providing its strong fecal odor; however in lower concentrations the compound has a pleasent aroma, giving orange blossoms and jasmine their pleasing scent. It is often a component of commercial fragrances and perfumes.<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 Nakashima, T., et al.: Biol. Pharm. Bull., 32, 832 (2009), Xu, H., et al.: Chem. Pharm. Bull., 57, 321 (2009), Bodoor, K., et al.: J. Med. Chem., 52, 3753 (2009), Naskar, S., et al.: J. Chem. Res., 3, 174 (2009), Sollner, K., et al.: J. Agric. Food Chem., 57, 4319 (2009),<br></p>

<p>Applications L-Lysine L-Malate is used in the preparation of amino acid ionic liquids for use in food and medical field.<br></p>

<p>Applications Isotope labelled N-Isovalerylglycine is a useful diagnostic tool in the diagnosis of many organic acidemias and mitochondrial fatty acid β-oxidation defects. N-Isovalerylglycine is found in the urine of patients with isovaleric acidemia, an inborn error of leucine metabolism.<br>References Tanaka, K. et al.: J. Biol. Chem., 242, 2966 (1967); Bonafe, L. et al.: Mol. Gen. Metab., 69, 311 (2000);<br></p>

<p>Stability Light Sensitive<br>Applications 6-Methoxy-2-naphthol is a reactant in the development of sirtuin inhibitors from pyrazolone and isoxazol-5-one cambinol analogs.<br>References Mahajan, S.S., et. al.: J. Med. Chem., 57, 3283 (2014)<br></p>

<p>Applications 5-Hydroxy-2-methyl-1H-imidazole-1-ethanol is a degradation product of Metronidazole (M338880), an antibiotic.<br>References Perez, Tzayam, et al.: Electrochimica Acta, 165, 173-181 (2015)<br></p>

<p>Applications 4-Benzyloxy-3-methoxybenzoic Acid is used in the synthesis of Hsp90 inhibitors as EGCG analogues. Also used in the preparation of vanillates exhibiting cytostatic properties towards cancel cells resistant to pro-apoptotic stimuli.<br>References Khandelwal, A. et al.: J. Org. Chem., 78, 7859 (2013); Lamoral-Theys, D. et al.: Bioorg. Med. Chem., 18, 3823 (2010);<br></p>

<p>Stability Toxic<br>Applications 2-Chloro-4-methylpyrimidine (cas# 13036-57-2) is a compound useful in organic synthesis.<br></p>

<p>Stability Air Sensitive<br>Applications 4-Chloro-2-methylaniline<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 4-[2-(4-Hydroxyphenyl)-4-methylpentan-2-yl]phenol could be a useful reagent for making visible-transparent aromatic polymers.<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 Agou, T., et al.: Macromolecules (Washington, DC, U. S.), 53, 2942 (2020)<br></p>

<p>Applications Phytosiderophores are produced in higher plants as iron chelating amino acids that promote uptake of iron from soil.<br>References Klair, S., et al.: J. Plant Nutr., 19, 1295 (1996),<br></p>

<p>Applications 2-Cyano-N-methylacetamide is used in the synthesis of pyridone compounds and benzimidazoles, for various pharmaceutical application.<br>References Mijin, D. et al.: Synth. Comm., 36, 193 (2006); Grimmett, M. et al.: Sci. Synth., 12, 529 (2002); Aggarwal, V. et al.: Synth. 3, 214 (1982);<br></p>

<p>Applications (1-Chlorocyclohexyl)cyclohexyl-methanone is a synthetic intermediate and a potential reagent for the synthesis of Dicyclomine Impurity A (B382435) and Dihexyverine Hydrochloride (D448200).<br>References Cramer, R., et al.: J. Med. Chem., 47, 6777 (2004); Vilar, S., et al.: J. Med. Chem., 49, 1118 (2006); Kopp, M., et al.: B. Soc. Chim. Fr., no vol., 84 (1952); Levy, J., et al.: CR. Soc. Biol., 144, 339 (1950)<br></p>

<p>Applications L-Serine-13C3 is the isotope labelled analog of L-Serine (S270995); a compound 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>Stability Very Hygroscopic<br>Applications 6-N-Trimethyl L-Lysine-d9, is the labeled analogue of Nε,Nε,Nε-Trimethyllysine, a metabolite and cofactor on the metabolic pathways.<br>References Rebouche C.J., et. al, J. Nutrition, 116(5), 751-759 (1986); Vaz, F.M et. al, J. Bio. Chem., 276(36), 33512-33517 (2001);<br></p>

<p>Stability Air Sensitive<br>Applications L-Homocysteine is the hydrolysis product of adenosine (A280400), a purine nucleoside. Metabolic fate of L-Homocysteine is converted back to L-Methionine( M260440) via tetrahydrofolate.<br>References Liu, X.D., et al.: Org. BIomolec. Chem., 11, 4258 (2013); Chen, C.S., et al.: Nueroendocrinol., 97, 232 (2013);<br></p>

<p>Applications Labelled L-Citrulline. An amino acid, first isolated from the juice of watermelon, Citrullus vulgaris Schrad., Cucurbitaceae. Used in the treatment of asthenia.<br>References Kurtz, et al.: J. Biol. Chem., 122, 477 (1938), Rajantie, J., et al.: J. Pediatr., 97, 927 (1980), Carpenter, T.O., et al.: N. Engl. J. Med., 312, 290 (1985),<br></p>

<p>Applications Suberylglycine is one of the acylglycines, an important class of metabolites that have been used in the diagnosis of several inborn errors of metabolism (IEM).<br>References Costa, C., et al.: J. Pharmaceut. Biomed. Anal., 21, 1215 (2000), Garcia-Villoria, J., et al.: Clin. Biochem., 42, 2 (2009), Scalbert, A., et al.: Metabolomics, 5, 435 (2009),<br></p>

<p>Applications A labelled 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>

<p>Applications 4-Chloro-benzoic Acid 1-(4-Methoxyphenyl)hydrazide Hydrochloride is a derivative of (4-Methoxyphenyl)hydrazine Hydrochloride (M265880). It is a useful synthetic intermediate for the preparation of Indomethacin (I641000); a potent, time-dependent, nonselective inhibitor of the cyclooxygenase enzymes COX-1 and COX-2.<br>References Blobaum, Anna L., et al.: ACS Med. Chem. Lett., 4(5), 486-490 (2013); Prusakiewicz, Jeffery J., et al.: Biochemistry, 43(49), 15439-15445 (2004)<br></p>

<p>Stability Hygroscopic<br>Applications 4-(4-Methylpiperazinomethyl)benzoic Acid, Dihydrochloride (cas# 106261-49-8) is a compound useful in organic synthesis.<br></p>

<p>Applications D-Aspartic Acid Dimethyl Ester Hydrochloride is a useful synthetic intermediate in the synthesis of MK-7246 (M425045); a potent and selective CRTH2 antagonist for the treatment of respiratory diseases.<br>References Molinaro, C., et al.: J. Org. Chem., 77, 2299 (2012); Gervais, F.G., et al.: Mol. Pharmacol., 79, 69 (2011); Gallant, M, et al.: Bioorg. Med. Chem. Lett., 21, 288 (2011)<br></p>

<p>Applications Nα-Boc-L-histidine is an N-Boc-protected form of L-Histidine (H456010). L-Histidine is an essential amino acid that plays an important role in mitochondrial glutamine transport and has potential of abolishing oxidative stress caused by brain edema.L-Histidine promotes zinc uptake in human erythrocyes and also has potential as an antioxidant therapy for acute mammary inflammation in cattle.<br>References Chaiyotwittayakun, A., et al.: J. Dairy Sci., 85, 60 (2002); Horn, N., et al.: J. Phys., 489, 73 (1995); Rama Rao, K., et al.: Am. J. Path., 176, 1400 (2010);<br></p>

<p>Applications L-Tyrosine-13C9 ,15N is labelled analogue of L-Tyrosine (T899975), one of the 22 proteinogenic amino acids that are used by cells to synthesize proteins. L-Tyrosine is biologically converted from L-phenylalanine and is in turn is converted to L-DOPA and further converted into the neurotransmitters: dopamine, norepinephrine, and epinephrine.<br>References Rasmussen D.D. et al.: J. Clin. Endocrinol. Metab., 57, 760 (1983); Bagchi, S.P. et al.: Biochem. Pharmacol., 26, 900 (1977)<br></p>

<p>Applications D-Homotyrosine hydrobromide<br></p>

<p>Applications Useful in the study of tyrosine-phosphorylation, which has been linked with the malignant transformation of cells by some RNA tumour viruses.<br>References Sefton, B.M., et al.: Cell, 20, 807 (1980), Erikson, R., et al.: Perspect. Virol., 11, 93 (1981), Lee, E-S, et al.: J. Org. Chem., 59, 2086 (1994)<br></p>

<p>Applications Labelled L-Ornithine. A non-essential amino acid for human development but is required intermediate in arginine biosynthesis. L-Ornithine is found in virtually all vertebrate tissues as well as incorporated into proteins, such as tyrocidine. Isolation from chicken excreta.<br>References Fattori, D. et al.: J. Med. Chem., 50, 550 (2007); Gomez-Alonso, S. et al.: J. Agric. Food Chem., 55, 608 (2007); Subramaniam, R. et al.: Bioorg. Med. Chem. Lett., 18, 3333 (2008);<br></p>

<p>Applications N-(4-Cyanophenyl)-glycine (cas# 42288-26-6) is a compound useful in organic synthesis.<br></p>

<p>Applications (+)-α-Methyl-β-alanine is a reactant for the chemoenzymatic assembly of cryptophycins as potent anticancer therapeutics.<br>References Magarvey, N.A., et al.: ACS Chem. Biol., 1, 766-779 (2006)<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>Stability Very Hygroscopic<br>Applications Hydroxyisovaleroyl Carnitine is used as a diagnostic tool to identify the presence of orofacial clefts. Also used in the screening and diagnostics of inborn errors of metabolism.<br>References Denes, J. et al.: Anal. Chem., 84, 10113 (2012); Budner, M. et al.: Arch. Oral. Biol., 58, 459 (2013);<br></p>

<p>Applications L-2-Aminobutyric Acid-d6 is the isotope labelled analog of L-2-Aminobutyric Acid (A602930); a receptor antagonist.<br>References Porter, D.J.T., et al.: Biochem. Pharmacol., 50, 1475 (1995)<br></p>

<p>Applications 5-Methoxy-1-methylindole-2-boronic acid pinacol ester (cas# 1256360-41-4) is a useful research chemical.<br></p>

<p>Applications N-Methyl-dl-valine, HCl<br></p>

<p>Applications L-Homocysteine Thiolactone Hydrochloride is used to prepare substituted homocysteine analogs as inhibitors of peptidylglycine α-amidating monooxygenase. It is also used to synthesize (mercaptoacyl)alanylprolines as metalloprotease inhibitors.<br>References Erion, M., et al.: J. Med. Chem., 37, 4430 (1994); Slusarchyk, W., et al.: Bioorg. Med. Chem. Lett., 5, 753 (1995)<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 L-Glutamic acid dibenzyl ester 4-toluenesulfonate<br></p>

<p>Applications N-Methyltaurine Sodium Salt is used in the analysis of the changing properties of anionic surfactants and the development of new skin cleansers or soaps. It is the salt of N-Methyltaurine, a compound used in sperm cryopreservation studies. N-Methyltaurine is also used in the studies relating to effects on oxidative damage to erythrocytes via phenylhydrazine.<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 Pokhrel, P.K. et al.: Adv. Exp. Med. Biol., 483, 503 (2000); Miyahara, R. et al.: Fragr. J., 28, 11 (2000); Garde, J.J. et al.: Bio. Repro., 69, 602 (2003);<br></p>

<p>Applications L-3-Benzothienylalanine<br></p>

<p>Impurity Verapamil EP Impurity K<br>Applications (Verapamil EP Impurity K)<br></p>

<p>Applications Myristoyl-L-carnitine Hydrochloride is a long-chain fatty ester of carnitine which is accumulated and released into the circulation, in fatty-acid oxidation defects. Pattern of Lauroyl-L-carnitine can be diagnostic for a number of ß-oxidation defects.<br>References Ventura, F., et al.: Clinica Chimica Acta, 281, 1 (1999); Pourfarzam, M., et al.: Clinical Chem,, 40, 2267 (1994); Schaefer, J., et al.: Pediatric Res., 37, 354 (1995)<br></p>

<p>Applications Acetyl-d3 L-Carnitine Hydrochloride is labelled Acetyl L-Carnitine Hydrochloride (A171990) which is used for transmembrane action potential studies. Acetylcarnitine has antinociceptive activity that may be mediated by enhanced activity of muscarinic cholinergic receptors or mGlu2 glutamate receptors.<br>References Matsui, K., et al.: Japanese J. Pharmcol., 39, 263 (1985); Chlechio, S., et al.: J. Endocrinol. Invest., 27, 171 (2004): Walker, R., et al.: Comparative General Pharmacol., 4, 65 (1973)<br></p>

<p>Applications Increased levels lead to hyperhomocysteinemia; a cardiovascular risk factor in prediction of coronary heart disease as well as being associated with congenital birth defects, pregnancy complications and cancer.<br>References Geisel, J. et al.: Clin. Chem. Lab. Med., 41, 1513 (2003); Geisel, J. et al.: Clin. Chem. Lab. Med., 41, 1513 (2003);<br></p>

<p>Applications Methionine-methyl-d3 is the labeled Methionine-methyl, a useful building block.<br></p>

<p>Applications An essential amino acid for human development. Precursor for nitric oxide. Ammonia detoxicant (hepatic failure); diagnostic aid (pituitary function).<br>References Miura, T., et al.: Anal. Biochem., 139, 432 (1984), Jones, et al.: Adv. Enzyme Regul., 9, 19 (1970), Borders, C.L., et al.: Protein. Sci., 3, 541 (1994),<br></p>

<p>Stability Hygroscopic<br>Applications Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. Cysteine is commonly used as a precursor in the food and pharmaceutical industries. Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.<br>References Hui, N. et al.: Meat Sci. Appl., 74 (2001); Kiviharju, K. et al.: J. Biotechnol., 117, 299 (2005); Pecivova, P. et al.: J. Sci. Food Agric., 90, 1681 (2010);<br></p>

<p>Applications Boc-His(Trt)-OH was used in the study to prepare and study structure-activity relationship of amino acid amides as selective inhibitors for dipeptidyl peptidases.<br>References Senten, K., et al.: J. Med. Chem., 46, 5005 (2003);<br></p>

<p>Impurity Piroctone USP Related Compound B<br>Applications 4-Methyl-6-(2,4,4-trimethylpentyl)-2H-pyran-2-one is used in the synthesis of antibacterials and antimycotics. Related to Piroctone (P509400), an anti-dandruff agent used in shampoo formulations. Piroctone USP Related Compound B<br>References Georgalas, A. et al.: J. Cosm. Sci., 55, S207 (2004); Mayser, P. et al.: J. Cosm. Sci., 54, 263 (2008);<br></p>

<p>Applications 2-Deoxy-2-chloro-D-glucose is a D-Glucose (G595000) derivative used in the synthesis of sugar nucleotides and oligosaccharides.<br>References Herr, D., et al.: Euro. J. App. Microbiol., 1, 41 (1975);<br></p>

<p>Stability Hygroscopic<br>Applications L-Saccharopine is a product of breakdown of essential amino acid Lysine (L468895). Saccharopine is also part of the α-aminoadipate pathway of fungal lysine biosynthesis.<br>References Higashino, K., et al.: Biochem. Biophys. Res. Commun., 20, 285 (1965); Johansson, E., et al.: Structure, 8, 1037 (2000)<br></p>

<p>Applications Isotope labelled β-Alanine is a naturally occurring beta amino acid. β-Alanine is formed in vivo by the degradation of dihydrouracil (D449990) and carnosine. β-Alanine is also the rate-limiting precursor of carnosine, as a result supplementation with β-alanine increases the concentration of carnosine in muscles.<br></p>

<p>Applications 5'-O-Methylthymidine (cas# 14504-60-0) is a useful research chemical.<br></p>