Acides aminés (AA)

Applications 3-Methoxy-2',4',6',4-tetrahydroxychalcone piperidine complex (cas# 52218-19-6) is a useful research chemical.

Applications The main metabolite of o-xylene.
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),

Applications N-Methyl-p-tyramineúHCl (cas# 370-98-9) is a useful research chemical.

Applications 4-Bromo-N-methylaniline is a aniline based compound known to exhibit mutagenic properties.
References Zhang, J. S., et al.: Org. Biomolec. Chem., 2015;

Applications H-PRO-GLU-OH (cas# 67644-00-2) is a useful research chemical.

Applications 3-Methoxybenzene-1,2-Diamine (cas# 37466-89-0) is a useful research chemical.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications 2-Methoxyphenylsulfate is used in the analysis of alkylsulfatases and their kinetics.
References Bateman, T. et al.: Biochem. J., 236, 401 (1986);

Applications 4-methoxy-3-methylaniline (cas# 136-90-3) is a useful research chemical.

Applications 3-Fluoro-4-methoxycarbonylphenylboronic acid, pinacol ester is a useful intermediate for organic synthesis and other chemical transformations.
References Zhao, F., et al.: Eur. J. Med. Chem., 134, 147 (2017); Zhao, F., et al.: Bioorg. Med. Chem., 24, 4281 (2016)

Applications 3,4-Dihydroxy-5-methoxybenzoic acid (cas# 3934-84-7) is a useful research chemical.

Applications N-Ethyl-N-methylcarbamoyl Chloride (cas# 42252-34-6) is a compound useful in organic synthesis.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications 4-Chloro-3-methylaniline (cas# 7149-75-9) is a compound useful in organic synthesis.

Stability Temperature Sensitive, Light Sensitive
Applications 2-Ethyl-4-methylpentyl Acrylate

Stability Hygroscopic
Applications Hexanoyl-L-carnitine-(N-methyl-d3) Chloride, is the labeled analogue of Hexanoyl-L-carnitine Hydrochloride (H294440), which is used as reactant in the synthesis of carnitine benzyl esters as prodrugs.
References Gong, X., et. al.: J. Chem. Res., 6, 327 (2008)

Applications Labeled Sucrose (S697000). Yuanzhen sugar is a polysaccharide polymer, containing a certain amount of fructooligosaccharides.
References Watanabe, T., et al.: Biosci. Biotech. Biochem., 72, 3167 (2008), You, Y., et al.: J. Agric. Food Chem., 57, 709 (2009),

Stability Hygroscopic
Applications 1,2-Cyclohexanedicarboxylic Acid Mono 4-Methyl-7-carboxy-heptyl Ester is a possible metabolite of the di(isononyl)cyclohexane-1,2-dicarboxylate (DINCH) monoester (MINCH).
References Koch, H., et al.: Arch. Toxicol., 87, 799 (2013)

Applications N-Boc-4-hydroxypiperidine is a 4-hydroxypyridine with a boc protecting group used in the preparation of neurologically active agents and other pharmaceutical compounds.
References Kwon, Y.E. et al.: Bioorg. Med. Chem., 15, 6596 (2007); Knutsen, L.J.S. et al.: J. Med. Chem., 42, 3463 (1999);

Applications A metabolite common to all triazole fungicides: free triazole, 1,2,4-triazole (T), and its 2 conjugates: triazolylalanine (TA) and triazolylacetic acid (TAA).
References Hrudey, S., et al.: Water Sci. Technol., 20, 55 (1988), Froese, K., et al.: Water Res., 33, 1355 (1999), Hengel, M., et al.: J. Agric. Food Chem., 50, 3412 (2002),

Applications 5-Methoxyresorcinol (cas# 2174-64-3) is a useful research chemical.

Impurity Carvedilol EP Impurity E; Carvedilol Impurity E; Carvedilol USP E
Applications 2-(2-Methoxyphenoxy)ethylamine Hydrochloride (Carvedilol EP Impurity E; Carvedilol Impurity E; Carvedilol USP E) is an impurity of Carvedilol synthesis.
References Smith, L., et al.: J. Med. Chem., 20, 1653 (1977),

Applications α-(2,3-Dimethylphenyl)-α-methyl-1H-imidazole-5-methanol is used as a reagent in the synthesis of Medetomidine (M203250); an α2-adrenergic agonist. Also a sedative and analgesic.
References Scheinin, M., et al.: Br. J. Clin. Pharmacol., 24, 443 (1987); Stenberg, D., et al.: J. Vet. Pharmacol. Ther., 10, 319 (1987); Virtanen, R., et al.: Eur. J. Pharmacol., 150, 9 (1988); Cullen, L.K., et al.: Br. Vet. J., 152, 519 (1996); Chen, W., et al.: Faming Zhuanli Shenqing. CN 101921234 A 20101222. Dec 22, 2010

Applications potassium 4-hydroxy-4-methylpentanoate (cas# 1607261-66-4) is a useful research chemical.

Applications DL-Homocysteine-d4 is used in the detection of the biosynthetic pathway for the formation of volatile aroma compound 2-methyltetrahydrothiophen-3-one by the bacterium Chitinophaga.
References Nawrath, T., et al.: ChemBioChem., 11, 1914-1919 (2010)

Applications 3-Methoxypropanoic acid

Applications L-Glutamic acid 5-methyl ester is a protected form of L-Glutamic acid (G596960). L-Glutamic acid is a nonessential amino acid that is important to the mammalian central nervous system. L-Glutamic acid is also a neurotransmitter for cone photoreceptors in the human brain and is used as a treatment for patients who have liver disease accompanied by encephalopathy (a condition termed ‘hepatic coma’).
References Anderson, H., et al.: J. Nutr., 99, 82 (1969); Brandon, C. & Lam, D.: Proc. Nat. Acad. Sci., 80, 5117 (1983); McDermott Jr, W., et al.: New Engl. J. Med., 253, 1093 (1955)

Applications L-Glutamine (Alpha-15n, 98%) (cas# 80143-57-3) is a useful research chemical.

Applications L-Glutamic Acid-d5 is an non-essential amino acid. Its salt form (glutamate) is an important neurotransmitter that plays a key role in long-term potentiation and is important for learning and memory. It is also a key molecule in cellular metabolism.
References McEntee, W., et al.: Psychopharmacology, 111, 391 (1993), Manev, H., et al.: Mol. Pharmacol., 36, 106 (1989)

Stability Very Hygroscopic
Applications 1-O-Dimethoxytrityl-2-(N-Fmoc)-4-Aminobutyl)-1,3-propanediol is a useful reagent for the synthesis of acridine and​/or lipid containing oligodeoxyribonucleotides.
References Marasco, C. J., et al.: Tetra. Lett., 35, 3029 (1994)

Applications A labelled metabolite of Toluene.
References Gargas, M., et al.: Toxicol. Appl. Pharmacol., 98, 87 (1989), Commandeur, J., et al.: Pharmacol. Rev., 47(2), 271 (1995), Campo, P., et al.: Neurotoxicol. Teratol., 21, 427 (1999), Lohse, C., et al.: J. Agr. Food Chem., 48, 5913 (2000),

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

Applications Thiodiglycolic Acid-d4 acts as a reagent for the synthesis of metabolites of S-carboxymethyl-L-cysteine and S-methyl-L-Cysteine and of some isotoically labelled (2H, 13C) analogs.
References Meese, C. O., et al.: Archiv der Pharmazie, 323, 957 (1990)

Applications N-Epsilon-acetyl-l-lysine is used in the metabolomics study on the combined effect of cocaine and ethanol via liquid chromatography-mass spectrometry metabolomics approach.
References Sanchez-Lopez, E., et al.: J. Pharm. Biomed. Anal., 140, 313 (2017)

Applications Useful in the study of tyrosine-phosphorylation, which has been linked with the malignant transformation of cells by some RNA tumour viruses.
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)

Applications L-Valine is an essential amino acid and one of 20 proteinogenic amino acids. L-Valine cannot be manufactured by the body and must be acquired through diet or supplementation. L-valine is found in grains, dairy products, mushrooms, meats, peanuts and soy proteins. L-Valine has been used in studies to attenuate arrhythmias and induce hypotensive effects.
References Choi, C.W. et al.: Anim. Feed Sci. Technol., 102, 15 (2002); Kolarski, D. et al.: Krmiva, 30, 155 (1988); Oba, M. et al.: J. Dairy Sci., 93, 2044 (2010); Mitrega, K. et al.: Pharmacol. Res., 64, 218 (2011);

Stability Hygroscopic, Temperature Sensitive
Applications A carnitine ester of unsaturated fatty acid. Used in the studies of fibroblasts in long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency and fatty acid oxidation disorders.
References Gross R.W., et al.: J. Biol. Chem., 258, 5221 (1983),

Applications L-Isoleucine is classified as an essential amino acid, and is also a tumour promoter of bladder cancer in rats.
References Hatch, T., et al.: Infect. Immun., 12, 211 (1975); Nishio, Y., et al.: Science, 231, 843 (1986)

Applications N-Carbobenzoxyglycine is used in the dipeptide synthesis.
References Hans, D., et al.: Med. Chem., 2, 627 (2006), Guzman, F., et al.: J. Biotechnol., 10, 279 (2007), Vlieghe, P., et al.: Drug Discov. Today, 15, 40 (2010),

Applications N-Isobutyrylglycine detection is a useful diagnostic tool in the diagnosis of many organic acidemias and mitochondrial fatty acid β-oxidation defects. N-Isobutyrylglycine detection is also used in the diagnosis of isobutyryl-CoA dehydrogenase deficiency.
References Costa, C. G. et al.: J. Pharmac. Biomed. Anal., 21, 1215 (2000); Bonafe, L. et al.: Mol. Gen. Metab., 69, 311 (2000); Sass, J. et al.: J. Inher. Metab. Dis., 27, 741 (2004);

Applications N-Methyl-dl-valine, HCl

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.
References Erion, M., et al.: J. Med. Chem., 37, 4430 (1994); Slusarchyk, W., et al.: Bioorg. Med. Chem. Lett., 5, 753 (1995)

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.
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)

Applications Dimethyl L-Aspartate Hydrochloride was used in the synthesis of enzyme and pH dual responsive L-amino acid based biodegradable polymer nanocarrier that can be used for multidrug delivery to cancer cells.
References Saxena, S., et al.: J. Polym. Sci. Pol. Chem., 54, 3279 (2016);

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.
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);

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.
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)

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.
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)

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.
References Geisel, J. et al.: Clin. Chem. Lab. Med., 41, 1513 (2003); Geisel, J. et al.: Clin. Chem. Lab. Med., 41, 1513 (2003);

Applications Methionine-methyl-d3 is the labeled Methionine-methyl, a useful building block.

Applications DL-Proline-2,5,5-d3 (CAS# 784086-28-8) is a useful isotopically labeled research compound.

Stability Hygroscopic
Applications A metabolite of Melatonin (M215000).
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),

Applications Bisphenol B Mono-β-D-glucuronide is a metabolite of Bisphenol B (B519565), which is the analogue of Bisphenol A (B519495), that is used to make certain plastic an epoxy resins. BPA and its analogs, are also shown to activate human pregnane X receptor (PXR), a nuclear receptor that functions as a master regulator of xenobiotic metabolism.
References Krishnan, A.V., et al.: Endocrinology, 132, 2279 (1993); Steinmetz, R., et al.: Trends Endocrinol. Metab., 9, 124 (1998); Petersen, H., et al.: Eur. Food Res. Technol., 216, 355 (2003); Yipeng, S., et al.: Env Hea. Pers., 120, 399 (2012);

Applications (1-Methyl-1H-imidazol-2-yl)-acetic acid (cas# 118054-54-9) is a useful research chemical.

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.
References Lee, M., et al.: Bioorg. Med. Chem., 8, 815 (2000); Boyle, S., et al.: Bioorg. Med. Chem., 2, 101 (1994)

Applications The active metabolite of Racecadotril (R070600).
References Roques, B.P., et al.: Nature, 288, 286 (1980), Tiraboschi, G., et al.: Protein Engineering, 12, 2, 141 (1999)

Applications 4-(1-Methylethyl)benzoic Acid is used in the synthesis of quinuclidine benzamides as agonists for nicotinic acetylcholine receptors. Also used in the synthesis of nifuroxazide analogues showing antimicrobial activity against methicillin-resistant Staphylococcus.
References Bodnar, A. et al.: J. Med. Chem., 48, 905 (2005); Masunari, A. et al.: Bioorg. Med. Chem. Lett., 15, 4229 (2007);

Stability Hygroscopic
Applications L-Ornithine is 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.
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),

Applications D-Glutamic acid 1-tert-butyl ester is a protected form of D-Glutamic acid (G596965). D-Glutamic acid is an unnatural isomer of L-Glutamic acid (G596960), and is found in bacterial cell wall peptidoglycan of gram-positive and gram-negative bacteria. D-Glutamic acid also occurs as poly-gamma-Glutamic acid, which is a weak immunogen but is capable of acting as a hapten (a small molecule that induces the production of antibodies, as well as binding to them).
References Dougherty, T., et al.: J. Bacteriol., 175, 111 (1993); Goodman, J. & Nitecki, D.: Immunology, 13, 577 (1967); Robinson, T.: Life Sci., 19, 1097 (1976)

Applications Perfluoro-3-methoxypropanoic acid (cas# 377-73-1) is a useful research chemical.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications Used in the preparation of medicinal and herbicidal agents.
References Cronin, J., et al.: Science, 275, 951 (1997), Podlech, J., et al.: Cell Mol. Life. Sci., 58, 44 (2001), Lee, S., et al.: J. Biol. Chem., 278, 46649 (2003),

Applications N-Pivaloylglycine is used in the biological study between dogs and rats. In a high dose toxicity study of pivalic acid (PA), PA caused skeletal muscle disorder in dog, and a significant increase of pivaloyl carnitine (PC) was observed in canine muscle, but not in rat muscle.
References Yamaguchi, T., et al.: Toxicol. Appl. Pharmacol., 214, 61-68 (2006)

Applications N-Acetyl-L-alanine is used as a biomarker for prostate cancer.
References Jansen, R., et al.: Clin. Biochem., 38, 362 (2005),

Applications H-L-METHR-OH (cas# 2812-28-4) is a useful research chemical.

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

Applications A metabolite of Crotonaldehyde.
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),

Stability Hygroscopic
Applications Oleoyl-L-carnitine is a long-chain fatty ester of carnitine which is accumulated and released into the circulation, in fatty-acid oxidation defects. Pattern of Oleoyl-L-carnitine can be diagnostic for a number of ß-oxidation defects.
References Adams, S., et al.: J. Nutrition, 139, 1073 (2009); 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)

Applications Ethyl Lauroyl Arginate Hydrochloride is used as a food antimicrobial in the sanitation of preserved foods. It is also used in cosmetics as a preservative.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Brandt, A. et al.: . Food. Sci., 75, M557 (2010); Taormina, P. et al.: J. Food. Prot., 72, 1216 (2009); Chem. and Eng. News Page 14, Nov. 5 (2018)

Applications A major metabolite of non-essential amino acid L-Cysteine.
References Parsons, R.B. et al.: Neurotoxicol., 19, 599 (1998);

Applications N,O-Dibenzoyl-DL-tyrosyl-N',N'-dipropylamide is a metabolite of the antispasmodic agent Tiropramide (T446900). Tiropramide impurity B.
References Janssen, et al.: J. Pharm. Pharmacol., 9, 381 (1956), Bertaccini, et al.: Br. J. Pharmac., 34, 310 (1968),

Applications 1-(2-Isopropylthiazol-4-yl)-N-methylmethanamine dihydrochloride (cas# 1185167-55-8) is a useful research chemical.

Applications An intermediate used in the synthesis of Pregabalin (P704800) and related compounds.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Posadas, I., et al.: Br. J. Pharmacol., 142, 331 (2004),

Applications Cyclic propano guanine adduct DNA acetaldehyde histone.
References Nath, R., et al.: Cancer Res., 58, 581 (1998), Wang, M., et al.: Chem. Res., 13, 1065 (2000), Terashima, I., et al.: Biochemistry, 40, 4106 (2001), Yokoyama, A., et al.: Carcinogenesis, 23, 1851 (2002),

Applications 1-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazine is an intermediate used to prepare nonracemic γ-bicyclic heteroarylpiperazine- and heteroarylpiperidine-substituted prolinylthiazolidines as selective and orally active dipeptidylpeptidase 4 inhibitors for use as antidiabetic agents.
References Yoshida, T., et al.: Bioorg. Med. Chem., 20, 5705 (2012)

Applications 5-Amino-2-methylbenzotrifluoride is used to prepare azoles as inhibitors of VEGF receptors 1 and 2 with high intestinal permeability. It can also be used to prepare curcumin analogs conjugated with antiandrogens.
References Kiselyov, A., et al.: Bioorg. Med. Chem. Lett., 17, 1369 (2007); Shi, Q., et al.: Bioorg. Med. Chem., 20, 4020 (2012)

Impurity Betahistine EP Impurity C (Free Base)
Applications N-Methyl-N,N-bis(2-pyridylethyl)amine is used as a reagent in the preparation of copper pyridylmethylethylenediamine dicyanamido polymeric complexes.
References Mautner, F.A. et al.: Inorg. Chim. Acta, 362, 4073 (2009);

Applications 2-Bromo-4'-methylpropiophenone (cas# 1451-82-7) is a compound useful in organic synthesis.

Applications 3-Methyl-2-hexanamine HCl Salt is more stable and easier to purify compared to the free base.

Applications 4-Hydroxy-4-methyl-2-pentanone-d12 (CAS# 114253-85-9) is a useful isotopically labeled research compound.

Applications A receptor adenine derivative binding membrane brain animal cell line.
References Camaioni, E., et al.: Bioorg. Med. Chem., 6, 523 (1998), Kelly, M., et al.: Br. J. Pharmacol., 125, 979 (1998), Redzic, Z., et al.: Brain Res., 888, 66 (2001), Levy, D., et al.: J. Med. Chem., 46, 2177 (2003),

Applications 5-Oxo-DL-proline-d5 is a labelled cyclized derivative of L-Glutamic Acid (G596960). The pyroglutamate core has potential application for synthesis of novel anti-bacterials.
References Mischo A. et al.: ChemBioChem., 13, 1421 (2012); Angelov P. et al.: Org. Biomol. Chem.: 10, 3472 (2012);

Applications 2-Hydroxy-3-methylbutyric Acid is a α-hydroxylated butyric acid derivative used as a marker in chemical diagnosis of organic aciduria and other inborn errors. 2-Hydroxy-3-methylbutyric Acid is also used as a metabolomic biomarkers in preeclampsia.
References Nakagawa, K. et al.: J. Chrom. B Anal. Technol. Biomed. Life Sci., 878, 942 (2010); Kenny, L.C. et al.: Reprod. Sci., 15, 591 (2008); Garcia, A. et al.: Clin. Chem., 44, 1905 (1999);

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.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
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),

Applications 3-Methyl-5-(3-nitrophenyl)cyclohex-2-enone is derived from Acetone (A163800), which is a common organic building block in organic chemistry.
References Neubert, L., et al.: J. Am. Chem. Soc., 134, 12239 (2012); Zhai, J.J., et al.: J. Am. Soc. Mass. Spec., 20, 1366 (2009);

Applications Guaiacol-beta-D-glucopyranoside, is a Guaiacol Conjugate, that has shown to present in fermentation of grapes that had been exposed to bushfire smoke and can potentially yield unpalatable, smoke-affected wine.
References Hayasaka, Y.m et al.: J. Arg. Food Chem., Vol. 58, Issue 4, P: 2076; 2081 (2010);

Impurity Rifaximin EP Impurity A
Applications 2-Amino-4-methylpyridine (Rifaximin EP Impurity A) is an impurity of Rifaximin.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package