Toxicología

<p>Applications Terbufos-sulfoxide was identified in vegetables and fruit by gas chromotography.<br>References Zhang, Q., et al.: Shandong Huagong, 45, 57 (2016)<br></p>

<p>Applications 4-(Trifluoromethyl)nicotinamide (TFNA-AM) is a metabolite of Flonicamid (F405710); a novel insecticide with rapid inhibitory effect against aphid feeding.<br>References Chen, G., et al.: Sepu, 30, 555 (2012); Morita, M., et al.: Pest. Manag. Sci.,63, 969 (2007); Sabatino, L., et al.: Food. Additive. Contamin., 6, 11 (2013)<br></p>

<p>Applications A labelled form of Etofenprox (E936400), which is a pyrethroid derivative which is used as an insecticide. Used as a standard for Pesticide detection. Useful in cannabis testing kits as a component of pesticide mixes (P698235).<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 Lehotay, S., et al.: J. AOAC Int., 88, 595 (2005); Paya, P., et al.: Anal. Bioanal. Chem., 389, 1697 (2007)<br></p>

<p>Applications Metazachlor Ethane Sulfonic Acid Sodium Salt is an ethanesulfonate metabolite of Metazachlor (M225855), which is a chloroacetanilide herbicide.<br>References Laue, H., et al.: Environ. Sci. Technol., 30, 1129 (1996); Matthies, M., et al.: Environ. Sci. Technol., 43, 9223 (2009); Hollender, J., et al.: Environ. Sci. Technol., 43, 7862 (2009); Dresen, S., et al.: Anal. Bioanal. Chem., 396, 2425 (2010); Liu, B., et al.: J. Agric. Food Chem., 58, 2673 (2010);<br></p>

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

<p>Stability Hygroscopic<br>Applications Bis(2,3-dibromopropyl) Phosphate is a derivative of Tris(2,3-dibromopropyl) Phosphate, a widely used flame retardant in plastic and textiles.<br>References Elliott, W.C., et al.: Life. Sci., 7, 1107 (1983);<br></p>

<p>Applications Methylstenbolone is an anabolic androgenic steroid that have been studied in respect of testosterone-receptor interaction and in the development of QSAR models.<br>References Singh, D., et al.: J. Chem. Pharma. Rsch., 3, 1 (2011); McFarland, K., et al.: Science, 245, 494 (1989); Heckert, L., et al.: Mol. Endocrinol., 12, 1499 (1998); Themmen, A., et al.: Endocr. Rev. 21, 551 (2000); Kumar, R., et al.: Biol. Reprod., 65, 710 (2001)<br></p>

<p>Applications Flufenacet is an anilide based herbicide that is applied to the soil surface or incorporated before the crop is emerged. Flufenacet is often used in field corn, corn grown for silage or soybeans to control annual grasses and broadleaf weeds.<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 Hulting, A.G., et al.: Weed. Technol., 26, 230 (2012); Bailly, G.C., et al.: Crop Protect., 34, 96 (2012);<br></p>

<p>Applications MBDB ia an analog of MDMA (M303985). MBDB is the N-methylated derivative of BDB (B198900), a hallucinogenic Phenylethylamine derivative. BDB is more potent than MBDB. MBDB is a CNS stimulant.<br>References Johnson., M.P., et al.: Eur. J. Pharmacol., 200, 9 (1991), Li, Q., et al.: J. Pharmacol. Exp. Ther., 279, 1261 (1996),<br></p>

<p>Applications Difluoroacetic acid<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 A charged sulfhydryl reactive reagent.<br>References Karlin, A., et al.: J. Mol. Biol. , 61, 175 (1971)<br></p>

<p>Applications An anticholinergic. Used as an antispasmodic.<br>References Zhang, L., et al.: Pharm. Res., 25, 1902 (2008), Sanderson, H., et al.: Toxicol Lett., 187, 84 (2009),<br></p>

<p>Applications CMPF-d3 is the labeled analogue of CMPF (C595000). CMPF is a drug-binding inhibitor which is also a constituent of urine. CMPF can inhibit specific T4 binding in serum by increasing the free concentration of direct competitors.<br>References Mabuchi, H., Nakahashi, H.: Nephron, 44, 277 (1986); Lim, C.F., et. al.: Metabolism Clin. Exp., 42, 1468 (1993);<br></p>

<p>Applications Misoprostol is a cytoprotective prostaglandin PGE1 analogue.<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 Graham, Y., et al.: Lancet, 2, 1277 (1988); Graham, D.Y., et al.: Ann. Int. Med., 119, 257 (1993); Fletcher, H., et al.: Obstet. Gynecol., 83, 244 (1994);<br></p>

<p>Applications Isotope labelled Melamine (M208703), which forms synthetic resins with formaldehyde. It remains largely non-metabolized in male Wistar rats with 90% of the administered dose excreted in the urine (1,2) and thus acts as a non-protein nitrogen food additive found in milk (3). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.<br>References 1. Mast, R. et al.: Food Chem Toxicol. 1983 Dec;21(6):807-10.2. Smith, J. et al.: Toxicol Appl Pharmacol. 1994 Apr;125(2):296-308.3. Anirudhan, T. et al.: Food Chem. 2017 Jul 15;227:85-92.<br></p>

<p>Stability Hygroscopic<br>Applications Chlorhexidine Digluconate Impurity K was found in a study of the kinetics of chlorhexidine hydrolysis.<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 Zong, Z., Lee, E.K.: J. Pharm. Sci., 101, 2417 (2012)<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Lamivudine (L172500).<br>References Burgess, K., et al.: Chem. Rev., 100, 2047 (2000), Gallois-Montbrun, S., et al.: Biochem. Pharmacol., 68, 1749 (2004),<br></p>

<p>Applications Shows antioxidant effects. Antiseptic.<br>References Wong, S., et al.: Clin. Chem., 33, 214 (1987), Daood, H., et al.: Food Chem., 55, 365 (1996), Zainol, M., et al.: Food Chem., 81, 575 (2003),<br></p>

<p>Stability Very Hygroscopic<br>Applications A sulfometabolite of Moxifloxacin (M745000).<br>References Dalhoff, A., et al.: Drugs, 58, 239 (1999), Ahmed, S., et al.: J. Pharm. Pharmacol., 60, 55 (2008),<br></p>

<p>Applications A metabolite of Tapentadol (T007200).<br>References Terlinden, R., et al.: Eur. J. Drug Metab. Pharmacokinet., 32, 163 (2007), Tzschentke, T., et al.: J. Pharmacol. Exp. Ther., 323, 256 (2007), Wade, W., et al.: Clin. Ther., 31, 2804 (2009),<br></p>

<p>Impurity Norethindrone EP Impurity D<br>Applications Norethynodrel (Norethindrone EP Impurity D) is a progestin used in Enovid, an oral contraceptive, also used in the treatment of endometriosis and hypermenorrhea.<br>References Palmer K., et al.: J. Pharmacol. Exp. Ther., 167, 207 (1969), Liu, L., et al.: Endocrinology., 151, 5782 (2010), Sonneveld, E., et al.: Toxicol. in Vitro, 25, 545 (2011)<br></p>

<p>Applications (9Z,12E)-Tetradecadien-1-yl Acetate is a sex pheromone component of Noctuidae in Antilles.<br>References Renou, M., et al.: Colloques - Institut National de la Recherche Agronomique, 46, 21 (1988); Teal, P. E. A., et al.: J. Chem. Ecol., 11, 717 (1985); Tamaki, J., et al.: Dokl. Soobshch. - Mezhdunar. Kongr. Zashch., 5, 132 (1975)<br></p>

<p>Stability Volatile<br>Applications N-Methyl-N-formylhydrazine is a substituent used in the synthesis of Marbofloxacin (M197000), a fluorinated quinolone antibacterial agent.<br>References Gruet, P., et al.: Vet. Rec., 140, 199 (1977), Lefebvre, H.P., et al.: J. Vet. Pharmacol. Ther., 21, 453 (1998),<br></p>

<p>Applications Estradiol oxidation impurity.<br></p>

<p>Applications Radioactive imaging 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 Subramanian, G., et al.: J. Nucl. Med., 16, 744 (1975), Rosenthall, L., et al.: Clin. Nucl. Med., 2, 232 (1977), Bull, U., et al.: Br. J. Radiol., 50, 629 (1977), Garty, I., et al.: Clin. Nucl. Med., 14, 515 (1989)<br></p>

<p>Stability Moisture Sensitive<br>Applications Phosphoric acid diethyl ester is an organophosphate that is usually found in pesticides and is known to induce changes in male hormone profile by decreasing serum testosterone and inhibin B levels. Phosphoric acid diethyl ester is also known to negatively affect the health of women and newborns living in agricultural communities.<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 Aguilar-Garduno, C., et al.: Toxicology, 307, 55 (2013); Huen, K., et al.: Environ. Res., 117, 8 (2012)<br></p>

<p>Applications Antibiotic.<br>References Koch, W.L., et al.: Anal. Profiles Drug Subs., 8, 157 (1979)<br></p>

<p>Stability Hygroscopic<br>Applications A medicinal agent for treating viral infections.<br>References Chiou, W., et al.: J. Pharm. Sci., 60, 1281 (1971), Ford, J., et al.: J. Pharm. Pharmacol., 31, 726 (1979), Tamblyn, S., et al.: Eur. J. Epidemiol., 10, 503 (1994), Suzuki, H., et al.: Chem. Pharm. Bull., 45, 1688 (1997),<br></p>

<p>Applications Labelled Entecavir. An oral antiviral drug used in the treatment of hepatitis B infection. A guanine analogue that inhhibits all three steps in the viral replication process.<br>References Innaimo, S.F., et al.: Antimicrob. Agents Chemother., 41, 1444 (1997), Honkoop, P., et al.: Expert Opin. Invest. Drugs, 12, 683 (2003), Chang, T.-T., et al.: N. Engl. J. Med., 354, 1001 (2006),<br></p>

<p>Stability Hygroscopic<br>Applications 2-Hydroxyethanephosphonic acid is an substrate used in the study of 2-hydroxyethylphosphonate dioxygenase reaction mechanism. 2-Hydroxyethanephosphonic Acid is also a required intermediate in labelled Fosfomycin (F727502) biosynthesis.<br>References Hirao, H., et al.: J. Am. Chem. Soc., 133, 14550 (2011); Hidaka, T., et al.: J. Antibiot., 45, 1008 (1992); Patel, S., et al.: Drugs, 53, 637 (1997); Ribes, S., et al.: J. Antimicrob. Chemother., 57, 931 (2006);<br></p>

<p>Stability Hygroscopic<br>Applications Erythromycylamine-d3 is labelled Erythromycylamine (E653400) which is a metabolite of Dirithromycin (D493000). It is also a potent macrolide antibiotic.<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 Bauldry, S., et al.: J. Biol. Chem., 263, 16787 (1988); Labro, M., et al.: J. Antimicrob. Chemother., 24, 561 (1989); Dumas, R., et al.: Chemother., 36, 381 (1990); Bacci, P., et al.: J. Chemother., 4, 268 (1992); Montenez, J., et al.: Toxicol. Appl. Pharmacol., 156, 129 (1999)<br></p>

<p>Applications 4-O-Desmethyl 4-O-Ethyl Trimethoprim is a derivative of Trimethoprim (T795615), an antibacterial agent that is commonly prescribed in conjunction with Sulfametoxazole (S699086) to treat patients afflicted with urinary tract infections. 4-O-Desmethyl 4-O-Ethyl Trimethoprim also has potential antibacterial activity.<br>References Roth, B., et al.: J. Med. Chem., 24, 933 (1981)<br></p>

<p>Applications Labelled Derivative of Artemisinin (A777500). Antimalarial, used to treat strains of malaria which are multi-drug resistant.<br>References Hombhanje, F., et al.: Pharma., 3, 3581 (2010), Michael, O., et al.: Malaria J., 9, 335 (2010), Cesar, I., et al.: J. Pharm. Biomed. Anal., 54, 114 (2011),<br></p>

<p>Applications An antimalarial.<br>References Natarajan, L., et al.: Arzneim.-Forsch., 22, 1230 (1972), Kracmer, J., et al.: Pharmazie, 29, 773 (1974), Ahmad, I., et al.: Anal. Profiles Drug Subs., 21, 43 (1992),<br></p>

<p>Applications 1-Decanol is a long chain alcohol that has been seen to enhance homomeric glycine receptor function. In addition, the 5HT2α receptors were inhibited by the presence of 1-decanol. This action has many psychological repercussions on an individual.<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 Mascia, M. et al.: Brit. J. Pharm., 119, 1311 (1996); Minami, K. et al.: J. Pharm. Exp. Ther., 281, 1136 (1997);<br></p>

<p>Applications Quinolone antibacterial. This compound is a contaminant of emerging concern (CECs).<br>References DiCarlo, et al.: Arch. Biochem. Biophys., 127, 503 (1968), Crew, et al.: Xenobiotica, 1, 193 (1971), Wright, H.T., et al.: Science, 213, 455 (1981),<br></p>

<p>Stability Light Sensitive<br>Applications A labelled metabolite of Rifampicin.<br>References Blumenfeld,O.O., et al.: J. Biol. Chem., 236, 2472 (1961), Cowxan, R.A., et al.: Biochem. Biophys. Res. Commun, 23, 799 (1966)<br></p>

<p>Applications trans-Abacavir Dihydrochloride is an impurity of Abacavir. Abacavir (A104990) is a carbocyclic 2'-deoxyguanosine nucleoside reverse transcriptase inhibitor and an anti-HIV drug used to treat HIV infection (1). Intracellular enzymes convert Abacavir to its active form, carbovir-triphosphate (CBV-TP), which then selectively inhibits HIV reverse transcriptase by incorporating into viral DNA (2). Abacavir is metabolized in the liver by uridine diphosphate glucuronyltransferase and alcohol dehydrogenase resulting in inactive glucuronide and carboxylate metabolites, respectively.<br>References (1) Jackson, A., et al.: Antivir Ther. 17, 19 (2012) (2) Yuen, G. J., et al.: Clin Pharmacokinet. 47, 351 (2008)<br></p>

<p>Impurity Clarithromycin EP Impurity I<br>Applications De(cladinosyl) Clarithromycin (Clarithromycin EP Impurity I) is an impurity of Clarithromycin (C559750). De(cladinosyl) Clarithromycin showed significantly potent antibacterial activity against community acquired respiratory pathogens.<br>References Morimoto, S., et al.: J. Antibiot., 37, 187 (1984), Buxbaum, A., et al.: J. Antimicrob. Chemother., 52, 371 (2003), Westphal, J., et al.: Br. J. Clin. Pharmacol., 50, 285 (2000), Ma, Z., et al.: J. Med. Chem., 44, 4137 (2001),<br></p>

<p>Impurity Azithromycin EP Impurity L<br>Applications Azithromycin N-Oxide (Azithromycin EP Impurity L) is an Azithromycin (A927000) impurity. A degradation products of Azithromycin.<br>References Anon., et al.: Pharmaeuropa, 13, 750 (2001),<br></p>

<p>Applications 1,1,3,3,5,5,7,7,9,9,11,11-DODECAMETHYLHEXASILOXANE (cas# 995-82-4) is a useful research chemical.<br></p>

<p>Applications Labelled Dimethomorph (D460530). Agricultural fungicide.<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 Lu, X., et al.: Phytopathol., 100, 1162 (2010), Schafer, R., et al.: Environ. Sci. Technol., 45, 1665 (2011),<br></p>

<p>Stability Hygroscopic<br>Applications Plerixafor is a hematopoietic stem cell (HSC) mobilizer that inhibits the CXCR4 chemokine receptor and blocks binding of its ligand, stromal cell-derived factor-1-α (SDF-1-α). This agent was approved on Dec. 15, 2008, as treatment in combination with granulocyte-colony stimulating factor (G-CSF) to mobilize HSCs to the peripheral blood for collection and subsequent autologous transplantation in patients with non-Hodgkin's lymphoma (NHL) and multiple myeloma (MM). Selective CXCR4 antagonist.<br>References Xie, T., et al.: Science, 290, 328 (2000), Leone, D., et al.: J. Pharmacol. Exp. Ther., 305, 1150 (2003), Chigaev, A., et al.: J. Immunol. 178, 6828 (2007), Kiel, M., et al.: Cell Stem Cell, 1, 204 (2007),<br></p>

<p>Applications Bisphenol AF-13C12 is the isotope labelled analog of Bisphenol AF (2,2-Bis-(4-hydroxyphenyl)hexafluoropropane). 2,2-Bis-(4-hydroxyphenyl)hexafluoropropane acts as an endocrine-disrupting chemical (EDC), activating estrogen through the estrogen receptor ERα. It is a full agonist for the estrogen receptor.<br>References Matsushima, A. et al.: Environ. Health, Perspect. 118, 1267 (2010);<br></p>

<p>Applications A labelled form of Ethoprophos (E890530), which is an organophosphate non-systemic nematicide and soil insecticide.<br>References Lehotay, S. J.; Chromatographia (2018).<br></p>