Toxicology

Applications Antiepileptic, structurally similar to meprobamate.
References Swinyard, E.A., et al.: Epilepsia, 27, 27 (1986), Remmel, R.P., et al.: Ther. Drug Monit., 12, 90 (1990), Sofia, R.D., et al.: Epilepsy Res. Suppl., 3, 103 (1991),

Applications The major glucuronide metabolite of Chloramphenicol (C325030).
References Simons, P., et al.: Xenobiotica, 22, 1267 (1992), Kaji, H., et al.: Drug Metab. Dispos., 33, 60 (2005),

Applications Non-absorbable semisynthetic Rifamycin antibiotic.
References Brufani, M., et al.: J. Antibiot., 37, 1611 (1984), Gillis, J.C., et al.: Drugs, 49, 467 (1995), Huang, D.B., et al.: J. Infection, 50, 97 (2005),

Stability Light Sensitive
Applications Disperse Polyester Dark Blue causes photocontact dermatitis in workers engaged in its manufacturing.
References Davies, Keith A., et al.: J. Appl. Chem. Biotechn., 25(3), 195-204 (1975)

Applications The (S)-isomer of Viloxazine (V312440). Antidepressant.
References Howe, R., et al.: J. Med. Chem., 19, 1074 (1976), Pinder, R.M., et al.: Drugs, 13, 401 (1977),

Impurity Clobetasol Propionate EP Impurity K / Betamethasone Dipropionate EP Impurity C
Applications Betamethasone 21-Propionate (Clobetasol Propionate EP Impurity K) is a degradation product of Betamethasone. Glucocorticoid.
References Andersson, P., et al.: J. Pharm. Pharmacol., 36, 763 (1984), Wurthwein, G., et al.: Biopharm. Drug Dispos., 11, 381 (1990), Samtani, M., et al.: J. Pharm. Sci., 93, 726 (2004), Samtani, M., et al.: Drug Metab. Dispos., 33, 1124 (2005),

Applications Aziprotryne is a pesticide.

Applications Oxyisofenphos is a stable degredation product of Isofenphos, a soil insecticide.
References Felsot, A.: J. Environ. Sci. Health. B, B19, 13 (1984); Hsin, C.Y., Coats, J.R.: Pestic. Biochem. Phys., 25, 336 (1986)

Applications An isotopically Labelled metabolite of Itraconazole, an orally active antimycotic structurally related to Ketoconazole. It is a COVID19-related research product.
References Saag, M., et al.: Antimicrob. Agents Chemother., 32, 1 (1988), Haria, M., et al.: Drugs, 51, 585 (1996), Kousoulos, C., et al.: Anal. Bioanal. Chem., 384,199 (2006),

Applications 2-Butylbenzo[D]isothiazol-3(2H)-one (cas# 4299-07-4) 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 Cyantraniliprole is used as an insecticide and/or acaricide. Also useful in cannabis testing kits as a component of pesticide mixes (P698240).
References Abbott, W., et al.: J. Econ. Entomol., 18, 265 (1925), Ali, A., et al.: Environ. Entomol., 19, 1066 (1990),

Impurity Amitriptyline EP Impurity C
Applications Nortriptyline Hydrochloride (Amitriptyline EP Impurity C) is a tricyclic antidepressant.
References Hale, J. L., et al.: Anal. Profiles Drug Subs., 1, 233 (1972), Rubin, E.H., et al.: J. Clin. Psychiatry, 46, 418 (1985),

Stability Hygroscopic
Applications Carmoterol is a highly potent β2-selective adrenoceptor agonist having a long-lasting bronchodilating effect.
References Abagyan, R., et al.: J. Mol. Biol., 235, 983 (1994), Matsukawa, M., et al.: J. Pharm. Biomed. Anal., 17, 245 (1998), Cole, P., et al.: Nat. Chem. Biol., 4, 590 (2008),

Applications 2-Chlorobenzonitrile is an activated aryl chloride that is commonly used in reactions that involve the Palladium-catalyzed direct arylation of heteroaromatics (e.g. 3-aminopicolinic acid [A627800]). 2-Chlorobenzonitrile and its substituted derivatives (e.g. 2,3-dichloro-6-nitrobenzonitrile [2112-22-3]) also have potential anti-inflammatory properties.
References Andreu, M., et al.: Chem. Commun., 24, 2475 (2000); Hellman, W., et al.: J. Med. Chem., 21, 906 (1978); Roy, D., et al.: ACS Catal., 2, 1033 (2012);

Applications Labelled Rasagiline. A selective irreversible MAO-B inhibitor. Rasagiline is an Antiparkinsonian agent.
References Rabey, J.M., et al.: Clin. Neuropharmacol., 23, 324 (2000), Glezer, S., et al.: Eur. J. Pharmacol., 472, 173 (2003), Youdim, M.B.H., et al.: Biochem. Pharmacol., 66, 1635 (2003), Chen, J.J., et al.: J. Clin. Pharmacol., 45, 878 (2005),

Applications (1R,2S,5R)-(-)-Menthol β-D-Glucuronide is a metabolite of L-(-)-Menthol (M218875), the natural form of Methanol.
References Eccles, R., et al.: J. Pharm. Pharmacol., 46, 618 (1994), Feng, S., et al.: Toxicol. Lett., 173, 101 (2007), Dempsey, D., et al.: Clin. Pharmacol. Ther., 76, 64 (2004),

Applications Labelled Mecoprop (M203052). Herbicide.
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 Gagne, F., et al.: Environ. Res., 103, 238 (2007), LaChapelle, A., et al.: Reprod. Toxicol., 23, 20 (2007),

Impurity Albendazole EP Impurity E
Applications Carbendazim (Albendazole EP Impurity E) is a fungicide and an impurity of Albendazole.
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 Zeng, Z., et al.: J. Agric. Food Chem., 44, 3374 (1996), Lewis, D., et al.: Xenobiotica, 28, 235 (1998), Hodgson, E., et al.: J. Biochem. Mol. Toxicol., 21, 182 (2007),

Applications Probenazole can be used in agricultural use and biological study of preparation of nicotinamide compounds containing chiral oxazoline and application thereof as agricultural antimicrobial agent.
References Li, S., et al.: Faming Zhuanli Shenqing, CN 106397422 A 20170215 (2017)

Applications Metolachlor OA-d11 is a deuterium labeled form of Metolachlor OA (M338705), which is a derivative of herbicide Metolachlor (M338700). Metolachlor OA is a drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.
References 1. McGahen, L. et al.: J. Agric. Food Chem. 1978 26 (2), pp 414–4192. Chesters, G. et al.: Rev. Environ Contam Toxicol. 1989;110:1-74

Stability Unstable in Solution
Applications (S)-(-)-Carbidopa is a peripheral decarboxylase inhibitor that is commonly used in combination with L-DOPA (D533751) for treatment of Parkinsonism. S(-)-Carbidopa ( has also been shown to prolong the elimination half-life of L-DOPA from blood plasma and skeletal muscle.
References Henry, G.M. et al.: Psychosom. Med., 38, 95 (1976); Leguire, L.E. et al.: Invest. Ophthalmol. Vis. Sci. 34, 3090 (1993); Deleu, D. et al.: Naun. Schmied. Arch. Pharmacol. 348: 576 (1993);

Impurity Lorazepam USP Related Compound A
Stability hygroscopic
Applications Lorazepam is an anxiolytic compound that potentiates GABAergic synaptic transmission by binding at the benzodiazepine site on the GABAA receptor.1,2 This product is intended for forensic and research applications. Lorazepam acts as ananticonvulsant. Lorazepam USP Related Compound A.Controlled substance (depressant).
References Rutgers, G., et al.: Anal. Profiles Drug Subs., 9, 397 (1980), Korkmaz, S., et al.: Eur. Neuropsychopharmacol., 8, 175 (1998), D’Onofrio, G., et al.: N. Engl. J. Med., 340, 915 (1999),

Applications Fipronil- 13C2 15N2 is the labeled analogue of Fipronil (F342200), which is a broad spectrum insecticide which actively disrupts the CNS of contacted insects by blocking the passage of chloride ions through GABA receptors.
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 Ling, S., et al.: App. Entomol. Zool., 44, 543 (2009), Li, X., et al.: Environ. Toxicol. Chem., 29, 127 (2010), Savant, R., et al.: J. Agric. Food Chem., 58, 1447 (2010),

Applications Emamectin B1 Benzoate is a neurotoxic pesticidal compound. A potential anti-leukemia agent. Also applied in pesticidal screening and control techniques.
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 Li, H., et al.: Agr. Sci. Tech., 15, 1707 (2014); Tang, T., et al.: Zhiwu Baohu, 42, 222 (2016); Yun, X., et al.: Environ. Toxicol. Pharmacol., 52, 280 (2017)

Stability Hygroscopic, Unstable in DMSO
Applications Post-emergence sulfonylurea herbicide.
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 Gubbiga, N.G., et al.: Weed Technol., 9, 574 (1995), Ukrainczyk, L., et al.: J. Agric. Food Chem., 43, 855 (1995)

Applications Labelled Talinolol. Selective β1-adrenergic blocker structurally related to Practolol. Antihypertensive; antiarrhythmic.
References Assmann, I., et al.: Curr. Med. Res. Opin., 13, 325 (1995), Trausch, B., et al.: Biopharm. Drug Dispos., 16, 403 (1995),

Stability Light Sensitive
Applications Labelled Rifabutin (R505000). Semisynthetic derivative of Rifamycin S that inhibits nucleic acid synthesis. An antibacterial (tuberculostatic).
References O’Brien, R.J., et al.: Infect. Dis., 9, 519 (1987), Anand, R., et al.: Antimicrob. AG. Chemother., 32 (684 (1988), Skinner, M.H., et al.: Antimicrob. Agent Chemother., 33, 1237 (1989),

Stability Hygroscopic
Applications Disodium salt of Mosapride (M731000) derivative.
References Yoshida, N., et al.: Arch. Int. Pharmacodyn. Ther., 300, 51 (1989), Yatera, S., et al.: Japan. Pharmacol. Ther., 21, 21 (1993), Ruth, M., et al.: Aliment Pharmacol. Ther., 12, 35 (1998),

Applications Main Quinfamide (Q670600) metabolite.
References Bailey, D., et al.: J. Med. Chem., 22, 599 (1979),

Applications A BODIPY derivative, used to synthesize fluorescent probes.

Applications Estocin is an opioid analgesic and is closely related to Benactyzine Hydrochloride (B119600).
References Gorbatova, E.N.: Stomatologiya, 46, 22 (1967)

Applications Isovaleryl L-Carnitine-d3 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 Paromomycin Deuterated Acetic Acid Salt is the isotope labelled analog of Paromomycin Sulfate. Paromomycin Sulfate is an aminogycoside antibiotic designed to fight intestinal infections such as cryptosporidiosis, amoebiasis, and leishmaniasis. Its antiprotozoal activity makes it an effecive histomonostatic feed additive in turkey poults experimentally infected with Histomonas meleagridis.
References Rehg, J.E. et al.: J. Infect. Dis., 170, 934 (1994); Fong, D. et al.: Am. J. Trop. Med. Hyg., 51, 758 (1994); Hafez, H.M. et al.: Arch. Anim. Nut., 64, 77 (2010);

Applications Furanylfentanyl is an opiod analgesic agent used which is an analog of Fentanyl (F275000).
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 Zernig, G., et al.: Life Sci., 57, 2113 (1995), Bot, G., et al.: J. Pharmacol. Exper. Therap., 285, 1207 (1998),

Applications A benzyl halide as postemergence herbicides.
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 Singer, G.M., et al.: J. Med. Chem., 26, 309 (1983),