Toxicology

Applications Isopropyl Phenyl Phosphate-d7 is the isotope labelled analog of Isopropyl Phenyl Phosphate (I873050); a polymer plasticizer for controlled release pesticide formulations. Isopropyl Phenyl Phosphate is also used as an antiwear and fireproofing agent.
References Asrar, J., et al.: PCT Int. Appl. WO 2002021913 A2 20020321. Mar 21, 2002; Placek, D.G., et al.: PCT Int. Appl. WO 9616143 A1 19960530. May 30, 1996; Beacham, H.H., et al.: Eur. Pat. Appl. EP 2601 A1 19790627. Jun 27, 1979

Applications Labeled rac-Ambrisentan (A575860) Nonpeptide endothelin ETA receptor antagonist. Antihypertensive.
References Riechers, H., et al.: J. Med. Chem., 39, 2123 (1996), Billman, G.E., et al.: Curr. Opin. Invest. Drugs, 3, 1483 (2002), Vatter, H., et al.: Clin. Neuropharmacol., 26, 73 (2003),

Applications (O6-Methyl-d3)-7,8-dihydro-6-isomorphine is the labeled analogue of O6-Methyl-7,8-dihydro-6-isomorphine (M302150), an impurity of Hydromorphone(H714650).

Applications Labelled Lubiprostone is a bicyclic fatty acid metabolite analog of Prostaglandin E1. It activates specific chloride channels in the gastrointestinal tract to stimulate intestinal fluid secretion, increase gastrointestinal transit, and improve symptoms of constipation.
References Farthing, M., et al.: Drugs, 56, 11 (1998), Pare, P., et al.: Am. J. Gastroenterol., 96, 3130 (2001), Sloots, C., et al.: Aliment. Pharmacol. Ther., 16, 759 (2002), Coremans, G., et al.: Digestion, 67, 82 (2003),

Applications Tinopal RBS 200 is a fluorescent whitening agent used in laundry detergents.
References Jasperse, J.L., Steiger, P.H.: J. Am. Oil Chem. Soc., 69, 621 (1992)

Applications The minor 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 N-Methyl-1,3,5-triazine-2,4-diamine Metformin is an impurity of Metformin (M258858), which is a useful research chemical. This impurity can be used to prepare pyrazolo[1,5-a]pyrimidin-7(4H)-ones as methionine adenosyltransferase 2A inhibitors to treat cancer. It can also be used to prepare pyrazolopyrimidinones as inhibitors of cellular metabolic processes.
References Konteatis, Z.D., et.al., PCT Int. Appl., 474,(2018); Konteatis, Z.D., et.al., U.S.Pat Appl.Publ., 289,(2018);

Applications 8-Chloro-6-(2-fluorophenyl)-3a,4,5,6-tetrahydro-1-methyl-3H-imidazo[1,5-a][1,4]benzodiazepine-d3 is an isotope labelled impurity of Midazolam (M343000), a drug used for the treatment of acute seizures and is also known to exhibit activities as an anticonvulsant, sedative, and hypnotic.
References Dundee, J. W., et al.: Drugs, 28, 519 (1984); Lahat, E., et al.: Br. Med. J., 321, 83 (2000);

Stability Moisture Sensitive, Temperature Sensitive
Applications A metabolite of Lumiracoxib.
References Fu, J., et al.: J. Biol. Chem., 265, 16737 (1990), Goldstein, J., et al.: Am. J. Gastroenterol., 96, 1019 (2001), Flower, R., et al.: Nat. Rev. Drug Discov., 2, 179 (2003), Grillo, M., et al.: Drug Metab. Dispos., 31, 1327 (2003),

Applications Prometon-d3 (methoxy-d3) (CAS# 1219803-43-6) is a useful isotopically labeled research compound.

Applications Analgesic.
References Haddad, P., et al.: Drugs, 62, 1649 (2002), Chiu, P., et al.: J. Pharmacol. Sci., 95, 311 (2004), Dubin, A., et al.: J. Biomol. Screen, 10, 168 (2005),

Applications 3’-Hydroxy Darunavir is a metabolite of Darunavir (D193500), a novel inhibitor of human immunodeficiency virus protease and used in the treatment of HIV infection. It is a COVID19-related research product.
References Vermeir, M., et al.: Drug. Meta. Disp., 37, 809 (2009); Koh, Y., et al.: Antimicrob. Agents Chemother., 47, 3123 (2003), Arasteh, K., et al.: AIDS, 19, 943 (2005), Surleraux, D.L.N.G., et al.: J. Med. Chem., 48, 1813 (2005),

Applications Butyric Anhydride-3,3,3',3',4,4,4,4',4',4'-d10 (CAS# 1398065-70-7) is a useful isotopically labeled research compound.

Applications Labelled analogue of Defluoro Linezolid, a defluorinated impurity of Linezolid (L466500).
References Kugelmann, E. et al.: J. Pharmac. Biomed. Anal., 54. 1047 (2011);

Applications Dilactic Acid is derived from 2,2'-Oxybis-propanoic Acid Diethyl Ester (O870540), which is an intermediate used in the preparation of the organochlorine pesticide Bis(2-chloroisopropyl) Ether. Bis(2-chloroisopropyl) Ether is used as a nematicide to control parasitic nematodes in agriculture.
References Chiyonishio, T., et al.: Tott.-ken Nog. Shik. Ken. Hok., 13, 29 (1973); Moreno Horn, M., et al.: 179, 234 (2003);

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 6-Methyl-1,3,5-triazine-2,4(1H,3H)-dione is a metabolite of metsulfuron methyl that has been found in soil.
References Ye, Q., Sun, J., Wu, J.: Environ. Pollut., 126, 417 (2003)

Applications Penconazole is an conazole based fungicide that works by inhibiting cell membrane ergosterol biosynthesis, thus stopping the development of fungi.
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 Sharma, H., et al.: J. Mycol. Plant. Pathol., 42, 494 (2012); Sen, K., et al.: Food. Chem. Toxicol., 50, 3990 (2012); Pitt, W.M., et al.: Plant Disease., 96, 1303 (2012);

Applications Prometon-d14 (di-iso-propyl-d14) (CAS# 1219803-45-8) is a useful isotopically labeled research compound.

Applications N-Boc-3-hydroxy-L-valine is used as a reagent in the synthesis of metabolites of PPI-2458, which is a selective, irreversible inhibitor of methionine aminopeptidase-2 (MetAP2). N-Boc-3-hydroxy-L-valine is also used in the preparation of Boceprevir (B674500); an NS3 serine protease inhibitor of hepatitis C virus for the treatment of HCV infection.
References Arico-Muendel, C.C., et al.: Drug Metab. Dispos., 41, 814 (2013); Venkatraman, S., et al.: J. Med. Chem., 49, 6074 (2006)

Applications 2-Methylphenyl Diethylcarbamate-13C6 is an intermediate in the synthesis of o-Cresol-13C6 (C781912). Isotope labelled o-Cresol is a compound used as a disinfectant and have also been used as antiseptic in surgery.
References Razavi, S.M., et al.: Nat. Prod. Res., 26, 2148 (2012); Asadollahi-B. M., et al.: Environ. Toxicol. Pharmacol., 34, 826 (2012);

Impurity Ritonavir EP Impurity N
Applications 4-Dehydroxy-5-Hydroxy Ritonavir (Ritonavir EP Impurity N) is an impurity of the selective HIV protease inhibitor Ritonavir (R535000). It is a COVID19-related research product.
References Kempf, D.J. et al.: J. Med. Chem., 41, 602 (1998); Mekapati, S.B. et al.: J. Enzyme Inhib., 16, 185 (2001);

Stability Hygroscopic
Applications A metabolite of Mosapride (M731000).
References Chen, H., et al.: J. Pharm. Biomed. Anal., 40, 142 (2006), Pedraglio, S., et al.: J. Pharm. Biomed. Anal., 44, 665 (2007), Christopher, L., et al.: Drug Metab. Dispos., 36, 1341 (2008), Curran, M., et al.: Drugs, 68, 981 (2008),

Applications 2,6-Dimethylmorpholine is used as a reagent in the synthesis of novel 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid amides which can exhibit antifungal activity. 2,6-Dimethylmorpholine is also used towards the synthesis of tetrahydrothiazolopyridine derivatives as potent smoothened antagonists.
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 Du, S., et al.: Molecules, 20, 8395 (2015); Du, S., et al.: Molecules, 20, 4071 (2015); Ma, H., et al.: Eur. J. Med. Chem., 89, 721 (2015)

Applications Methyl (1R,4S)-4-Amino-2-cyclopentene-1-carboxylate (2S,3S)-2,3-Dihydroxybutanedioic Acid is an intermediate used in the synthesis of ent-Abacavir (A105015), which is an enatiomer of Abacavir (A105000). Abacavir 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.

Impurity Moxifloxacin EP Impurity B
Applications Moxifloxacin (M745000) impurity B.
References Langlois, M., et al.: J. Pharm. Biomed. Anal., 37, 389 (2005), Salem, M., et al.: Chem. Pharm. Bull., 54, 1625 (2006),

Applications Digoxin derivative, a cardiotonic glycosides steroid.
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 Yoshida, F., et al.: J. Med. Chem., 43, 2575 ( 2000), Turner, J., et al.: Pharm. Res., 21, 68 (2004), Wang, J., et al.: Anal. Chim. Acta, 601, 156 (2007),

Applications 4-Mercaptobenzonitrile is a building block used as a reactant in the synthesis and in vitro anti-hepatitis B virus activities of some ethyl 6-bromo-5-hydroxy-1H-indole-3-carboxylates.
References Chai, H., et al.: Bioorg. Med. Chem., 14, 911 (2006);

Applications Echinacoside Ethanolate is a caffeic acid glycoside, known for its neuroprotective, antiinflammatory and anti-oxidative activities. Also an anti[proliferative towards hypoxia influenced pulmonary artery smooth muscle cells.
References Gai, X. et al.: J. Pharm. Sci., 126, 155 (2014);

Applications 3-​Methoxy-​4-​methyl-​1H-​1,​2,​4-​triazol-​5(4H)​-​one Hydrate, is a Triazole (T767410) derivative that was used in microwave synthesis of 1,2,4-triazolone derivatives possessing antifungal activity. 3-​Methoxy-​4-​methyl-​1H-​1,​2,​4-​triazol-​5(4H)​-​one is also a key intermediate for sulfonylurea herbicides, such as flucarbazone.
References Su, J., Shang, Z.: Nongyao, 49, 563 (2010); Sun, N., et al.: BioMed Res. Int., 1 (2015);

Applications A novel metabolite of Phenazopyridine (P313751).
References Bailey, K., et al.: Drug Metab. Dispos., 11, 277 (1983), Thomas, B. H., et al.: J. Pharm. Sci., 79, 321 (1990), Thomas, B.H., et al.: Xenobiotica, 23, 99 (1993),

Applications 5-Methyl Tetrazole is used in the preparation of novel antifungal agents based derived from N-iodopropargylazoles and N-triiodoallylazoles. 5-Methyl Tetrazole also in the preparation of novel quinoline derivatives against mycobacterium tuberculosis.
References Koyama, M. et al.: J. Med. Chem., 30, 552 (1987); Upadhayaya, R. et al.: Bioorg. Med. Chem., 17, 2830 (2009);

Impurity Oseltamivir EP Impurity F;
Applications 3-Des(1-ethylpropoxy)-3-(1-methylpropoxy) Oseltamivir (Oseltamivir EP Impurity F) is an impurity of the antiviral drug Oseltamivir (O700100). It is a COVID19-related research product.

Applications Albendazole Sulfoxide-d7 is the isotope labelled metabolite of Albendazole (A511620), an anthelmintic agent.
References Dominguez, L., et al.: Farmaco, 50, 697 (1995), De Laurentis, N., et al.: Pharm. Pharmacol Lett., 6, 2: 51 (1996)

Stability Light Sensitive
Applications A thiol reactive water soluble fluorescent dye.

Stability Moisture Sensitive
Applications Fluorescent labeling reagent for proteins. Used in the fluorescent antibody technique for rapid identification of pathogens. Dyes and metabolites.
References Riggs, H.J.L., et al.: Amer. J. Pathol., 34, 1081 (1958), Mann, K.G. and Fish, W.W., Methods in Enz., 26, 28 (1972),

Applications Rilpivirine Glycosamine Product II is an impurity of Rilpivirine(R509800) which is a novel non-nucleoside reverse transcriptase inhibitor. Rilpivirine seems to be well tolerated with less CNS disturbance than Efavirenz, and has non-teratogenic potential. An anti-HIV agent.
References Sun, et al.: J. Med. Chem., 41, 4648

Applications Erythromycin Cyclocarbonate is a derivative of Erythromycin (E649950), an antibcterial agent working on the 50S ribosomal subunit.
References Champney, W. et al.: Curr. Microbiol., 38, 342 (1999); Koch, W.L., et al.: Anal. Profiles Drug Subs., 8, 157 (1979),

Applications A labeled derivative of Amoxicillin (A634235), a semi-synthetic antibiotic related to penicillin. Antibacterial.
References Brogden, R.N., et al.: Drugs, 18, 169 (1979), Bird, A.E., et al.: Anal. Profiles Drug Subs. Excip., 23, 1 (1994),