Standard farmaceutici

Stability Hygroscopic
Applications Desfuroyl Ceftiofur Dimer is an impurity of the drug Ceftiofur (C244695), a third generation cephalosporin antibiotic used in veterinary medicine.
References Donaldson, S.C. et al.: Appl. Environ. Microbiol., 72, 3940 (2006); Yancey, R.J. et al.: Am. J. Vet. Res., 48, 1050 (1987);

Applications A metabolite of the agricultural fungicide Kresoxim-methyl(K659000).
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 Salmon, F. et a.: Xenobiotica, 26, 803 (1996); Gold, R.E. et al: Mod. Fungic. Antifungal Compd., 11, 79 (1996);

Applications Fluorescent Brightener KSN (cas# 5242-49-9) is a useful research chemical.

Applications ((2R,5S)-5-(4-Amino-5-fluoro-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolan-2-yl)methyl hydrogen ((((R)-1-(6-amino-9H-purin-9-yl)propan-2-yl)oxy)methyl)phosphonate is an impurity of Emtricitabine (E525000), a reverse transcriptase inhibitor. It is an effective antiviral agent against HIV, HBV, and other viruses replicating in a similar manner. A nucleoside analog structurally related to Lamivudine (L172500).
References FASEB J., 13, 1511 (1999), Molina, J.-M., et al.: J. InfecSchinazi, R.F., et al.: Antimicrob. Ag. Chemother., 36, 2423 (1992), Shockeor, J.P., et al.: Xenobioica, 26, 189 (1996), Feng, J.Y., et al.: . Dis., 182, 599 (2000)

Applications A metabolite of Ranolazine (R122500).

Stability Light Sensitive
Applications (1R,​3S)​-3-​(2,​2-​Dichloroethenyl)​-​2,​2-​dimethylcyclopropanecarboxam​ide is a useful research chemical.

Applications rac cis-Paroxetine N-Methyl is an impurity formed in the synthesis Paroxetine (P205750) related compounds.
References Gangula, S., et al.: Syn. Commun., 42, 3344 (2012);

Applications 17β-Hydroxy Exemestane 17-O-β-D-Glucuronide is the glucuronidated conjugate of the hydroxy metabolite of Exemestane (E957000).
References Sun, D. et al.: Pharmacogen. Genom., 20, 575 (2010);

Applications 4'-(Imidazol-1-yl)acetophenone (cas# 10041-06-2) is a useful research chemical.

Applications (R)-8-Hydroxy-3-methyl-1,2,3,4-tetrahydrobenz[a]anthracene-7,12-dione (cas# 681001-30-9) is a compound useful in organic synthesis.

Applications 4-(5-Bromothiophen-2-yl)benzonitrile (CAS# 415718-60-4) is a useful research chemical compound.

Applications 7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(carboxymethoxy)imino]acetyl]amino]-cefixime is a cefixime impurity. Cefixime (C242800) is an orally active, third generation cephalosporin antibiotic.
References Kamimura, T., et al.: Antimicrob. Agents Chemother., 25, 98 (1984),Yamanaka, H., et al.: J. Antibiot., 38, 1738 (1985), Guay, D.R.P., et al.: Antimicrob. Agents Chemother., 30, 485 (1986),

Applications N-Methyl(p-tosyl)carbamic Acid Methyl Ester is a methyl ester derivative of N-[(arylsulfonyl)methyl]carbamates that display intramolecular shielding.
References Van der Werf, S. et al.: Rec. Trav. Chim. Pays-Bas, 89, 423 (1970);

Applications 3-Acetyl-1-Boc-pyrrolidine is a boc protected reagent that is used for selective inhibitors of H. influenzae TrmD that mimic tRNA interaction by inducing TrmD lid domain ordering.
References Hill, P.J., et al.: J. Med. Chem., 56, 7278 (2013);

Stability Hygroscopic
Applications A metabolite of Venlafaxine.

Applications Intermediate for the preparation of Naratriptan and other indole sulfonamide derivatives.

Applications 21-O-Acetyl Allo-3α-tetrahydro Cortisol 3-(2’,3’,4’-Tri-O-acetyl)-β-D-Glucuronide methyl ester is a Cortisol derivative. A potential corticoid metabolite. a
References Okihara, R. et al.; Chem. Pharm. Bull. 58, 344 (2010); Hosoda, H. et al.; Chem. Pharm. Bull. 32, 4023 (1984)

Applications Α labelled metabolite of Tamoxifen (T006000).
References Sun, D., et al.: Breast Cancer Res., 8(4), (2006), Zheng, Y., et al.: Drug Metab. Dispos., 35, 1942 (2007),

Applications Used in the preparation of triazole antifungal agents.

Applications 14,15-Epoxy-moxidectin is a by-product during the synthesis of 3,4-Epoxy-moxidectin (E589045), which is derived from the parent compound Moxidectin (M744800), a macrocyclic lactone and semisynthetic derivative of nemadectin. Moxidectin is a parasiticide used for the prevention and control of heartworm and intestinal worms. Moxidectin is found in veterinary medicine used to treat animals such as dogs, cats, horses, cattle and sheep.Also, it is one of the impurities of Moxidectin under stress conditions.
References Bisset, S.A. et al.: New Zeal. Vet. J., 40, 97 (1992); Monahan, C.M. et al.: Vet. Parasitol., 63, 225 (1996); Glickman, L.T. et al.: Int. J. Appl. Res. Vet. Med., 3, 49 (2005); Awasthi, A., et al.: Anal. Bioanal. Chem., 404, 2203-2222 (2012)

Applications 2,4,5-Trichlorophenoxyacetic Acid Isobutyl Ester is a component in herbicide formulation used in the protection of crops.
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 Noble, A. et al.: Pest. Sci., 28, 203 (1990);

Applications 4-Hydroxybenzoyl Chloride is used in preparation of lysine sulfonamides as HIV-protease inhibitors.
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 Stranix, B., et al.: Bioorg. Med. Chem. Lett., 16, 3459 (2006);

Applications A leukotriene D4 antagonist. Used as an antiallergic, antiasthmatic, and vasodilator (cerebral). PDE inhibitor (non-selective).
References Nishino, K., et al.: Japan J. Pharmacol., 33, 267 (1983), Ohashi, M., et al.: Arch. Int. Pharmacodyn., 280, 216 (1986), Armstead, W.M., et al.: J. Pharmacol., Exp. Ther., 244, 138 (1988),

Applications 12β-Deoxycholic Acid Methyl Ester 3α-Benzoate is an intermediate in the synthesis of 3α,12β-Dihydroxycholanoic Acid is a bile acid that may decrease of the toxic effects of deoxycholic acid on lipid peroxidn.
References Hino, A., et. al.: J. Biochem., 129, 683 (2001)

Applications Methyl 2-((((Benzyloxy)carbonyl)amino)methyl)-5-hydroxy-6-oxo-1,6-dihydropyrimidine-4-carboxylate is an intermediate used in the synthesis of N-((5-Hydroxy-6-oxo-4-((2,4,6-trifluorobenzyl)carbamoyl)-1,6-dihydropyrimidin-2-yl)methyl)-1,3,4-oxadiazole-2-carboxamide (H950690), which is a derivative of Raltegravir (R100305), a potent integrase (IN) inhibitor for WT and S217Q PFV IN.
References Hare, S., et al.: Proc. Natl. Acad. Sci. U. S. A., 107, 20057 (2010); Hicks, C., et al.: Clin. Infect. Dis., 48, 931 (2009); Moss, D., et al.: Antimicrob. Agents Chemother., 56, 3020 (2012); Hare, S., et al.: Mol. Pharmacol., 80, 565 (2011)

Applications 1,1'-[Dithiobis(methylene)]biscyclopropaneacetic Acid is an intermediate in the synthesis of Montelukast (M568000), a selective leukotriene D4-receptor antagonist used as an antiasthmatic agent.

Stability Moisture Sensitive, Toxic
Applications Benzyl Chloromethyl Ether is a reagent in the preparation of benzoyl-hydroxypyrimidine-diones, which are dual inhibitors of HIV reverse transcriptase and integrase.
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 Tang, J., et al.: Bioorg. Med. Chem. Lett., 21, 2400 (2011); Berkley, S., et al.; Nat. Med. 16, 981 (2010)

Stability Hygroscopic
Applications 3,3',5-triiodo-β-hydroxy-D/L-thyronine is an impurity or analog of 3,3’,5-Triiodo-D-thyronine (T795375), which is a structural analogue of the thyroid hormone Thyroxine (T425600). 3,3’,5-Triiodo-D-thyronine has been shown to reduce cholesterol in blood serum.
References Mintz, D.O., et. al.: New Engl. J. Med., 266, 808 (1962)

Applications A thienopyrimidine derivative as herbicides.
References Kourounakis, A., et al.: Drug Dev. Res., 2000, 49(4), 227 (2000),

Applications 5-(N,N-Diethylcarboxamide)-1-phenylpyridin-2(1H)-one (cas# 1076199-97-7) is a compound useful in organic synthesis.

Applications b-Phenylethyl Furoate (cas# 7149-32-8) is a useful research chemical.

Applications 3-Chloro-5-fluoro Clodinafop Propargyl is an impurity of Clodinafop Propargyl (C584515), which is a herbicide that is used for weed control in wheat.
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 Aliverdi, A., et al.: Weed Biol. Management, 9, 292 (2009), Hochberg, O., et al.: Weed Res., 49, 37 (2009), Liu, B., et al.: J. Agric. Food Chem., 58, 2673 (2010),

Applications 21-Di[methylenebis(oxy)] 5α-Dihydrocortisol is an intermediate in the synthesis of Allo-3α-tetrahydro Cortisol 3-O-β-D-Glucuronide Sodium Salt-d7 (A548512), which is a metabolite of Cortisol (H714615) in human plasma.
References Ikegawa, S. et al.: Anal. Chem., 81, 10124 (2009); Kornel, L. et al.: J. Steroid. Biochem., 13, 751 (1980); Kornel, L. et al.: J. Steroid Biochem., 6, 1267 (1975);

Applications (S)-Metalaxyl is the S-enantiomer of Metalaxyl (M258740(P)), an agricultural fungicide. Metalaxyl is a contaminant of emerging concern (CECs). It is useful in cannabis testing kits as a component of pesticide mixes (P698235(M)).
References Boughalleb, N., et al.: Int. J. Agric. Res., 5, 1057 (2010), Lian, Y., et al.: J. Agric. Food Chem., 58, 9428 (2010)

Applications (±)-Napropamide-d10 (N,N-diethyl-d10) is a useful isotopically labeled compound of Napropamid (N378700)

Applications Artemether Succinate Dimer is a derivative compound of Artemisinin (A777500), an antimalarial.
References Klayman, D.L., et al.: Science, 228, 1049 (1985); Price, R.N., et al.: Expert Opin. Invest. Drugs, 9, 1815 (2000); Meshnick, S.R., et al.: Int. J., Parasitol., 32, 1655 (2002);

Applications A prototypical BCRP inhibitor. Inhibits the Bcrp1-mediated transport.
References Neville, K., et al.: Clin. Cancer Res., 10, 2525 (2004), Reardon, D., et al.: J. Clin. Oncol. 23, 9359 (2005), Pan, G., et al.: Drug Metab. Dispos., 35, 1165 (2007),

Applications 6-Keto-testosterone Cypionate, is a derivative of Testosterone Cypionate (T155100), which is an anabolic steroid with androgenic properties. Testosterone Cypionate is also used for testosterone therapy in males with hypogonadism. (Controoled Substance)
References Rabkin, J.G. et al.: J. Clin. Psychopharmacol., 19, 19 (1999); Hajjar, R. et al.: J. Clin. Endocrinol. Metab., 82, 3793 (1997); Rhoden, E. et al.: J. Sex Med., 7, 277 (2010);

Applications 25-Des(dimethylbutenyl) 25-(1,3-Dimethyl-2,3-epoxybutnyl) Moxidectin is a by-product during the synthesis of 3,4-Epoxy-moxidectin (E589045), which is derived from the parent compound Moxidectin (M744800), a macrocyclic lactone and semisynthetic derivative of nemadectin. Moxidectin is a parasiticide used for the prevention and control of heartworm and intestinal worms. Moxidectin is found in veterinary medicine used to treat animals such as dogs, cats, horses, cattle and sheep.Also, it is one of the impurities of Moxidectin under stress conditions.
References Bisset, S.A. et al.: New Zeal. Vet. J., 40, 97 (1992); Monahan, C.M. et al.: Vet. Parasitol., 63, 225 (1996); Glickman, L.T. et al.: Int. J. Appl. Res. Vet. Med., 3, 49 (2005); Awasthi, A., et al.: Anal. Bioanal. Chem., 404, 2203-2222 (2012)

Stability Temperature Sensitive
Applications It is used in efficient synthesis of 1β-O-acyl glucuronides via regioselective acylation of allyl or benzyl D-glucuronate.Αcyl glucuronides are known metabolites of important drugs.
References Kaspersen, F., et al.: Xenobiotica, 17, 1451 (1987), Ebner, T., et al.: Drug Metab. Dispos., 27, 1143 (1999), Shipkova, M., et al.: Ther. Drug Monit., 25, 1 (2003), Stachulski, A., et al.: J. Med. Chem., 49, 6931 (2006),

Applications O-Methyl Oxazepam Acetate is an impurity of Oxazepam (O845700), which is an anxiolytic; muscle relaxant (skeletal); anticonvulsant; ligand for the GABAA receptor benzodiazepine modulatory site. Controlled substance (depressant).
References Goldenthal, E.I., et al.: Toxicol. Appl. Pharmacol., 18, 185 (1971), Sisenwine, et al.: Arzneim. Forsch., 22, 682 (1972), Shearer, C.M., et al.: Anal. Profiles Drug Subs., 3, 441 (1974), Greenblatt, D.J., et al.: Clin. Pharmacokinet., 6, 89 (1981),

Stability Hygroscopic
Applications Nicotine-N-(4-deoxy-4,5-didehydro)-β-D-glucuronide is a possible metabolite of Nicotine (N412420).
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 Ceftiofur intermediate.

Applications 4'-[(4,5-Dimethyl-3-isoxazolyl)sulfamoyl]acetanilide is an renal metabolite of Sulfatroxazole (S699265), is an component present in various veterinary drugs.
References Nouws, J. F. M., et al.: J. Vet. Pharmacol. Ther., 12, 50 (1989);

Applications Testosterone (T155000) derivative. Intermediate in the preparation of Epostane (E588850).

Stability Hygroscopic
Applications 2-Chloroethyl benzoate (cas# 939-55-9) is a useful research chemical.

Applications Methyl (2E)-[2-(chloromethyl)phenyl)](methoxyimino)acetate is an impurity from the pesticide active ingredient, Trifloxystrobin, a broad-spectrum foliar fungicide used in plant pritection.
References Margot, P. et al.: Bright. Crop Prot. Conf. Pest Dis., 2, 375 (1998); Karadimos, D.A. et al.: Crop Prot., 24, 23 (2005); Prom, L.K. et al.: Plant Dis., 87, 252 (2003);

Applications 2-Nitromorphine is an intermediate in the synthesis of 3-O-(Codein-2-yl)morphine (C634500), an impurity of Codeine (C634075).
References Chatterjie, N., et al.: Syn. Commun., 9, 647 (1979);

Applications Labelled analogue of Fenthion Sulfoxide, the sulfoxide anlogue and metabolite of the organothiophosphate insecticide Fenthion (F278000).
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 Wallnoefer, P. et al.: Pflanzensch.-Nach., 29, 236 (1976); Minelli, E.V. et al.: J. Agric. Food. Chem., 44, 936 (1996);

Applications Testosterone Methanesulfonate is an intermediate in the synthesis of Androstadienone (A637340), a prominent androstene present on male human axillary hair and on the male axillary skin surface.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Stability Hygroscopic
Applications Isovaleryl L-Carnitine-d9 Chloride is labelled Isovaleryl L-Carnitine Chloride (I917580) which is used to prepare carnitine benzyl esters as neuroprotectant prodrugs.
References Gong, X., et al.: J. Chem. Res., 6, 327 (2008)

Applications Nucleosides as antiviral agent for the treatment of influenza; broad-spectrum inhibitor of viruses in the Flaviviridae family.
References Sidwell, R.W., et al.: Appl. Microbiol., 22, 797 (1971), Allen, B., et al.: J. Med. Che,., 18, 721 (1976),

Applications 2-Cyano-2-(hydroxyimino)acetic Acid is a degradation product of Cymoxanil (C988995), which is a fungicide applied as a seed treatment or as a foliar application to the plants to control late blight. It is an effective ligand for Cu2+ and Ni2+ ions over a broad pH range and useful reagent for synthesizing chelating agents.
References Morrica, P., et al.: J. Agric. Food Chem. 52, 99 (2004); Dhingani, J. C., et al.: J. Pure. App. Microbiol., 6, 1683 (2012); Bakirici, G.T., et al.: Food. Chem., 135, 1901 (2012); Sliva, T. Y., et al.: Dalton Trans. 11, 1863 (1998)

Applications 2'-O-Methyl-d3 Paclitaxel is a labeled analogue of 2'-O-Methyl Paclitaxel (M326135), a potential cytotoxic agent.
References Kant, J., et. al.: Bioorg. med. Chem. Lett., 3, 2471 (1993)

Applications Azadiradione is an extract from Neem (Azadirachta indica) plant and may contain antifungal properties. It has also been shown to restore protein quality control and ameliorate disease pathogenesis in Huntington’s disease.
References Singh, T. et al.: Am. J. PharmTech. Res., 6, 323 (2016); Singh, B. et al.: Mol. Neurobiol., 55, 6337 (2018);

Applications 4,4'-Diamino-2,2'-bipyridine is a bidendate chelator.

Applications 1-Acetyl-2-[1-(2-naphthyl)ethyl]benzene (cas# 1246820-30-3) is a compound useful in organic synthesis.

Applications Cholesterol-d6 has been used in safe procedures to measure the percentage of cholesterol absorption, based on that of D. B. Zilversmit (1972), by using Cholesterol-d6 as a stable nonradioactive isotopic tracer of cholesterol that was administered orally into normal individuals to facilitate clinical investigation.
References Bosner, Matthew S., Journal of Lipid Research, 34, 1047-53, (1993)

Applications N-(1-Ethylpropyl)-N-methyl-β-alanine is a compound useful in organic synthesis.

Applications Fmoc-3-(2-naphthyl)-D-alanine is an intermediate used in the preparation of phosphoserine-containing tetrapeptides with hydrophobic N-terminal acyl groups as inhibitors of the BRCA1 protein.
References Yuan, Z., et al.: Med. Chem. Lett., 2, 767 (2011); Liu, T., et al.: ACS. Comb. Sci., 13, 537 (2011);

Applications 5,6,7,8-Tetrahydronaphthalene-1-carbonyl Chloride is used in the synthesis of a sweetening agent, N-5,6,7,8-Tetrahydro-1-naphthoyl-α-L-glutamyl-5-amino-2-pyridine carbonitrile.
References Nofre, C., et al.: Eur. Pat. Appl. (1992), EP 511087 A1

Applications Calcium Chloride Dihydrate is used in the preparation of bisphosphonates used in attacking cancer cells.
References Liu, D. et al.: Chem. Comm., 48, 2668 (2012);

Stability Hygroscopic
Applications 4-Amino-4'-nitrostilbene-2,2'-disulfonic Acid Disodium Salt (cas# 6634-82-8) is a compound useful in organic synthesis.
References Taylor, A., et al.: Biochem., 38, 11172 (1999),

Impurity Irbesartan Bromo N2-Trityl Impurity
Stability Moisture Sensitive
Applications An intermediate in the synthesis of Losartan and Valsartan.

Applications Metabolite from phenanthrene degradation.
References Pinyakong, O. et al.: FEMS Microbiol. Lett. 191, 115 (2000)

Applications Phosphoric Acid Tris(3-​methylphenyl) Esteris a human urinary organophosphate flame retardant metabolite. It is also used to study properties of supercooled liquids.
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 Schindler, B., et al.: J. Chromat. B, 877, 375 (2009); Heuberger, G., et al.: J. Phys. Chem., 100, 15255 (1996); Blochowicz, T., et al.: J. Chem. Phys., 118, 7544 (2003)

Stability Light Sensitive
Applications 3',4',7,8-Tetrahydroxyflavone (cas# 3440-24-2) is a useful research chemical.

Stability Hygroscopic
Applications 3,​3',​3''-​(2,​4,​6-​boroxintriyl)​tris-Pyridine Hydrochloride is a compound useful in organic synthesis.

Applications Decahydronaphthalene is used as an industrial chemical solvent for polymer analysis. Used as a solvent for many resins and fuel additives.
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 Wang, J. et al.: App. Mech. Mat., 651, 157 (2014); Kazuhiko, O. et al.: J. Am. Chem. Soc., 116, 11737 (1994);

Applications Testosterone Octanoate-d15 is the isotope analog of Testosterone Octanoate. Testosterone Octanoate is a metabolite of tesosterone (T155000), which is used in biological studies to determine the hemolytic and lipophilic activity of this anabolic steroid.
References Biagi, G.L., et al.: J. Med. Chem., 13, 944 (1970); Biagi, G. L., et al.: J. Med. Chem., 18, 873 (1975)

Applications trans-2,cis-6-Nonadienal-D2 is a labelled analogue of trans-2,cis-6-Nonadienal (N649365). trans-2,cis-6-Nonadienal is an unsaturated aldehyde that is responsible for the cucumber smell of Synura petersenii, a freshwater colonial flagellate. trans-2,cis-6-Nonadienal is also a common natural and drinking water contaminant.
References Berra, T., et al.: Trans. Am. Fish. Soc., 111, 78 (1982); Kynclova, A., et al.: Nova Hedw. Bei., 136, 283 (2010); Ömür-Özbek, P. & Dietrich, A.: Environ. Sci. Tech., 39, 3957 (2005)