Toxicología

<p>Stability Unstable in Solution<br>Applications A psychotropic benzodiazepine derivative with hypnotic and anxiolytic properties. Controlled Substance.<br>References Sethy, V.H. et al.: Naun.-Schmeid. Atch. Pharmacol., 301, 157 (1978); Moore, S. et al.: Curr. Therap. Res., 29, 704 (1981); Gutierrez, S.F. et al.: Cien. Pharmac., 5, 37 (1995);<br></p>

<p>Applications Nonpeptide, direct thrombin inhibitor. Antithrombotic.<br>References Hauel, N., et al.: J. Med. Chem., 45, 1757 (2002), Mungall, D., et al.: Curr. Opin. Invest. Drugs, 3, 095 (2002), Stangier, J., et al.: J. Clin. Pharmacol., 45, 555 (2005),<br></p>

<p>Applications beta-Estradiol 3-(beta-D-glucuronide) sodium salt is a non-cholestatic regioisomer of the estrogen metabolite, estradiol 17-(β-D-glucuronide).<br></p>

<p>Applications An inhibitor of proliferation and supresses gene expression in bladder smooth muscle cells.<br>References Park, J.M., et al.: J. Urol., 162, 1110 (1999), Watson, M., et al.: Brit. J. Pharmacol., 127, 590 (1999)<br></p>

<p>Applications Racemic Colchicine.<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 novel labelled metabolite of Perchloroethene (PER) in humans after inhalation. It is an important biomarker for the glutathione dependent biotransformation of PER.<br>References Urban, G., et al.: Xenobiotica, 24, 881 (1994), Birner, G., et al.: Drug Metab. Dispos., 24, 41 (1996), Dekant, W., et al.: Drug Metab. Dispos., 15, 702 (1987),<br></p>

<p>Applications Bisphenol A-d8 is the labeled analogue of Bisphenol A (B519495), a monomer used for policarbonate and epoxy resins; exhibits estrogenic activity. BPA is also used as a building block in polycarbonate bottles and in the epoxy-resin liners of metal cans.<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 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)<br></p>

<p>Applications Labelled synthetic peptide agonist analog of LH-RH. Triptoreline is a potent agonist of LH-releasing hormone, currently used in the treatment of prostatic cancer where therapy may be required over months or years. Antineoplastic (hormonal). Used in the treatment of endometriosis and infertility.<br>References Sanders, L., et al.: Eur. J. Drug Metab. Pharmacokinet., 15, 95 (1990), Chiba, M., et al.: Biomaterials, 18, 893 (1997), Blanco, D., et al.: Eur. J. Pharm. Biopharm., 45, 285 (1998), Sinha, V., et al.: J. Control. Rel., 90, 261 (2003),<br></p>

<p>Applications Isotope labelled Nonacetylated aspirin analog. Analgesic, anti-inflammatory.<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 Harrison, L.L., et al.: J. Pharm. Sci., 69, 1268 (1980), Dromgoole, S.M., et al.: J. Pharm. Sci., 73, 1657 (1984),<br></p>

<p>Applications Methionine sulfoximine inhibits both glutamine synthetase and g-glutamylcysteine synthetase. Working concentrations for inhibition of g-glutamylcysteine synthetase are 0.2-2.0 mM (52% inhibition occured at 100 mM).Methionine sulfoximine is also a toxic byproduct of nitrogen trichloride, a compound that was used to bleach unprocessed wheat flour prior to 1968. The compound has been investigated as a potential neurotoxin linked to diseases such as amyotrophic lateral sclerosis (ALS) and Parkinson’s disease.<br>References Griffith, O.W., and Meister, A.: J. Biol. Chem. 254, 7558 (1979), Willard-Mack, C.L., et al: Neuroscience, 71, 2, 589 (1996)<br></p>

<p>Impurity Nicardipine USP Related Compound B<br>Applications A pyridine metabolite M-5 of Nicardipine. Nicardipine USP Related Compound B.<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 Triggle, A., et al.: J. Med. Chem., 23, 1442 (1980), Freedman, D., et al.: Drugs, 34, 578 (1987), Guengerich, F., et al.: Xenobiotica, 25, 689 (1995), Schleifer, K., et al.: Pharmazie, 54, 804 (1999),<br></p>

<p>Applications N6-Isopentenyladenosine has antiproliferative activity on MCF-7 breast cancer cells.<br>References Rajabi, M. et al.; DNA Cell Biol.; 29, 687 (2010)<br></p>

<p>Stability Hygroscopic<br>Applications An active carboxylate of Mevastatin (M340500). It is a competitive inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A reductase with hypocholesterolemic activity. It has been shown to be effective in reducing cholesterol synthesis in vivo, and thereby in lowering cholesterol levels in blood.<br>References Endo, A. et al.: Atheroscler. Supp., 5, 39 (2004); Hosobuchi, M. et al.: J. Ferm. Bioeng., 76, 470 (1993);<br></p>

<p>Applications 6-Oxo Simvastatin is an analog of Simvastatin (S485000), a HMG-CoA reductase inhibitor.<br>References Joshua, H., et al.: J. Antibiot., 44, 366 (1991),<br></p>

<p>Applications A metabolite of Baclofen (c).<br>References Ault, B., et al.: Eur. J. Pharmacol., 71, 357 (1981),<br></p>

<p>Applications 19-Norandrosterone is the oxidized byproduct of Nandrolone (N315000), an anabolic steroid that is present naturally in the human body.<br>References Jiang, J.Q., et al.: J. Food. Sci., 77, 63 (2012); Delgadillo, M.A., et al.: J. Chromatograph. Anal. Technol. Biomed. Life. Sci., 897 (2012);<br></p>

<p>Applications A related compound of Desloratadine (D290250).<br>References Krishna, K., et al.: J. Pharm. Biomed. Anal., 32, 29 (2003), Qi, M., et al.: J. Pharm. Biomed. Anal., 38, 355 (2005),<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Azelastine (A808250).<br>References Heinemann, U. et al.: J. Chrom. B Anal. Tech. Biomed. Life Sci., 793, 389 (2003); Tasaka, K., et al.: Arzneim.-Forsch., 29, 488 (1979);<br></p>

<p>Applications Testololactone, is the derivative of Testolactone (T154800), which is an antineoplastic agent that is a derivative of progesterone and is used to treat advanced stage breast cancer.<br>References Dunkel, L.: Mol. Cell. Endocrinol., 254, 207 (2006); Eugster, E. A.: Treat. Endocrinol., 3, 141 (2004); Holbeck, S.L. et al.: Mol. Cancer Therap., 9, 1451 (2010);<br></p>

<p>Stability Temperature and Light Sensitive, unstable in solution<br>Applications Vitamin K1 Hydroxide is a derivative of Vitamin K1 (V676080), which occurs widely in green plants, algae, and photosynthetic bacteria.<br>References Hassan, M.M.A., et al.: Anal. Profiles Drug Subs., 17, 449 (1988), Breton, J., et al.: Biochemistry, 33, 12405 (1994), Dowd, P., et al.: Science, 269, 1684 (1995),<br></p>

<p>Stability Hygroscopic<br>Applications Antihistaminic.<br>References Berthon, B., et al.: Biochem. Pharmacol., 47, 789 (1994), Hu, Q., et al.: J. Biol. Chem., 274, 33995 (1999),<br></p>

<p>Applications Zinc pentamethylenedithiocarbamate (cas# 13878-54-1) is a useful research chemical.<br></p>

<p>Applications Labelled Torsemide (T548750). Used as a diuretic.<br>References Lesne, M., et al.: In. J. Clin. Pharmacol. Ther. Toxicol., 20, 382 (1982), Brater, D.C., et al.: Clin. Pharmacol. Ther., 42, 187 (1987),<br></p>

<p>Applications Lumichrome is a derivative of Riboflavin (R415000), a vitamin with a key role in maintaining cellular function and health in human and animals. Dyes and metabolites.<br>References Rajamani, S., et al.: Mol. Plant. Microbe. Interact., 21, 1184 (2008); Unna, K., et al.: J. Pharmacol. Exp. Ther., 76, 75 (1942), Rivlin, et al.: N. Engl. J. Med., 283, 463 (1970), Al-Shammary, F.J., et al.: Anal. Profiles Drug Subs., 19, 429 (1990),<br></p>

<p>Impurity Anastrozole Monoamide Impurity<br>Applications Anastrozole Monoamide is a derivative of Anastrozole (A637425), an aromatase inhibitor. Used as an antineoplastic.<br>References Plourde, P.V., et al.: Breast Cancer Res. Treat., 30, 103 (1994), Buzdar, A.U., et al.: Cancer, 79, 730 (1997)<br></p>

<p>Applications A bile acid derivative as anti-inflammatory and antitumor agent.<br>References Yasukawa, K., et al.: Chem. Pharm. Bull, 19, 573 (1996), Yasukawa, K., et al.: J. Pharm. Pharmacol., 52, 119 (2000), Iida, T., et al.: Lipids, 38, 281 (2003),<br></p>

<p>Applications Isopyridoxal Hydrochloride is an active vitamer of the B6 complex in humans, and a metabolite standard in the determination of all seven vitamin B6-related compounds. It is also a metabolite in a pyridoxine degradation pathway by soil bacteria.<br>References Edwards, P., et. al.: Clinica Chimica Acta: Int. J. Clin. Chem., 190, (1990); Lee, Y. C., et. al.: J. Bio. Chem., 261, (1986); Argoudelis, C. J.: J. Chromatogr. A, 790, (1998)<br></p>

<p>Applications A metabolite of Mifepristone.<br>References Heikinheimo, O., et al.: J. Steroid Biochem., 26, 279 (1987), Brogden, R., et al.: Drugs, 45, 384 (1993), Shi, Y., et al.: Contraception, 48, 133 (1993), Jang, G., et al.: Biochem. Pharmacol., 52, 753 (1996), Gainer, E., et al.: Steroids, 68, 1005 (2003),<br></p>

<p>Applications Principal pigment of bile and constituent of many biliary calculi.<br>References Stenhagen, R., et al.: Biochem. J., 33, 1591 (1939), Gray, et al.: J. Chem. Soc., 2264, 2268 (1961),<br></p>

<p>Applications 2-Hydroxydesipramine Dihydrochloride is a metabolite of Desipramine (D290050), a tricyclic antidepressant that is a more potent inhibitor of the norepinephrine transporter than the serotonin transporter.<br>References De Jongh, G.D., et al.: Drug Metab. Dispos., 2, 48 (1981); Suckow, R.F., et al.: J. Pharm. Sci., 73, 1745 (1984); Fraser, A.D., et al.: J. Anal. Toxicol., 11,168 (1987); Checkley, S.A, et al.: Br. J. Psychiatry, 138. 248 (1981); Zhu, M.Y., et al.: J. Neurochem., 70, 1547 (1998); Okugawa, G., et al.: J. Neuroindocrinol., 11, 887 (1999); Torres, G.E., et al.: Nat. Rev. Neurosci., 4, 13 (2003)<br></p>

<p>Impurity Beclomethasone Dipropionate EP Impurity L<br>Applications 1,2-Dihydro Beclomethasone Dipropionate (Beclomethasone Dipropionate EP Impurity L) is an impurity of Beclomethasone Dipropionate (B131030).<br></p>

<p>Stability Light Sensitive, Temperature Sensitive<br>Applications An oxidized derivative of the visual pigment carotenoid.<br>References Wada, A., et al.: Chem. Pharm. Bull., 56, 112 (2008), Smolensky, E., et al.: Biochem., 48, 9170 (2009),<br></p>

<p>Applications 3-Cysteinylacetaminophen-D5 (major), Trifluoroacetic Acid Salt is deuterium labeled 3-Cysteinylacetaminophen Trifluoroacetic Acid Salt (C994750), which is a metabolite of Acetaminophen (A161220), an analgesic and antipyretic agent used as a pain reliever to treat headache, muscle aches, and arthritis (1,2,3).Minimum isotopic incorporation d-3, no d-0 present. A representative lot has 64% isotopic incorporation at the 6-position, 89% at the 4-position.<br>References (1) McGill, M. R. and Jaeschke, H. Pharm Res. 30, 2174 (2013)(2) Fairbrother, J.E., et al.: Anal. Profiles Drug Subs., 3, 1 (1974) (3) Hinson, J.A., et al.: Rev. Biochem. Toxicol., 2, 103 (1980)<br></p>

<p>Applications Campesteryl Ferulate is a component of γ-​oryzanol with antioxidant activities.<br>References Xu, Z., et al.: J. Agric. Food Chem., 49, 2077 (2001);<br></p>

<p>Applications A metabolite of Triamcinolone acetonide.<br>References Edsbacker, S., et al.: Drug Metab. Dispos., 11, 590 (1983), Szefler, S., et al.: Eur. J. Clin. Pharmacol., 30, 323 (1986), Hansel, T., et al.: J. Immunol. Methods, 145, 105 (1991), Argenti, D., et al.: J. Clin. Pharmacol., 39, 695 (1999),<br></p>

<p>Impurity Amlodipine EP Impurity F / Amlodipine USP Related Compound F<br>Applications Amlodipine Besilate (A633500) impurity. Amlodipine EP Impurity F<br>References Coburn, R., et al.: J. Med. Chem., 31, 2103 (1988), Gupta, S., et al.: Eur. J. Med. Chem., 38, 867 (2003), Vazzana, I., et al.: J. Med. Chem., 50, 334 (2007),<br></p>

<p>Applications A metabolite of Benzydamine (B209950).<br>References Kataoka, S., et al.: Chem. Pharma. Bull., 21, 358 (1973),<br></p>

<p>Applications Labelled Ouabain (O714500). A cardiac glycoside that inhibits Na(+)/K(+) ATPase. It regulates transcription of MDR (increase, Pgp) and MRP (increase MRP1 and decrease CFTR, cyctic fibrosis transport receptor or cAMP-activated Cl- channel) genes, also alters localization of MRP1.<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 Padilha, A.S. et al.: Clin. Exp. Pharmacol. Physiol., 35, 801 (2008); Blaustein, M.P. et al.: Clin. Exp. Hypertens. 20, 691 (1998); van Huysse, J.W. et al.: Clin. Exp. Hypertens. 20, 657 (1998);<br></p>

<p>Applications 4-Hydroxy Propofol sulfate sodium salt is a derivative of Propofol, a hypnotic intravenous agent that is commonly used as an anasthetic for conscious sedation.<br>References GüLCIN, I., et al.: Chem. Pharm. Bull., 53, 281 (2005); Koshy, G., et al.: Am. J. Gastroenterol., 95, 1476 (2000)<br></p>

<p>Impurity Atorvastatin EP Impurity G<br>Applications Atorvastatin derivative.<br></p>

<p>Stability Hygroscopic<br>Applications Rosuvastatin tert-Butyl Ester, is a metabolite of Rosuvastatin (R700500) a selective, competitive HMG-CoA reductase inhibitor.<br>References Watanabe, M., et al.: Bioorg. Med. Chem., 5, 437 (1997), Lee, E., et al.: Clin. Pharmacol. Ther., 78, 330 (2005), Ferdinand, K.C., et al.: Am. J. Cardiol., 97, 229 (2006),<br></p>

<p>Applications Carvedilol (C184625) derivative.<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 metabolite of Acepromazine (A130900).<br>References Cossum, P., et al.: Drug Dispos., 9, 321 (1988), Stowell, L., et al.: J. Anal. Toxicol., 22, 166 (1998),<br></p>

<p>Applications (cas# 53188-20-8) is a useful research chemical.<br></p>

<p>Applications N-Acetyl-cys(1)-calcitonin Salmon is a derivative of Calcitonin (salmon), is a 32-amino acid linear polypeptide hormone that is produced in thyroid in humans. It acts to reduce blood calcium (Ca2+), opposing the effects of parathyroid hormone (PTH).<br>References Boron, WF., et al.: Med. Physi., A Cellular and Molecular Approach (2004); Andreotti, G. et al.: J. Bio. Chem., 281, 24193 (2006);<br></p>

<p>Applications The main basic metabolite of Diethylpropione.<br>References Banci, F., et al.: Arzneim.-Forsch., 21, 1616 (1971), Mikhailova, D., et al.: Eur. J. Med. Chem., 13, 49 (1978),<br></p>

<p>Applications Betamethasone 6α-Bromo 17-Valerate is an impurity of Betamethasone (B327000), which is a glucocorticoid used as an anti-inflammatory agent.<br>References Ferrante, M.G., et al.: Anal. Profiles Drug Subs., 6, 43 (1977), Li, A., et al.: Chem. Biol. Interact., 142, 7 (2002), Cruz-Monteagudo, M., et al.: Eur. J. Med. Chem., 40, 1030 (2005), Rothfuss, A., et al.: Chem. Res. Toxicol., 19, 1313 (2006),<br></p>

<p>Stability Hygroscopic<br>Applications Synthetic thrombin inhibitor. Thrombin mutant anticoagulant antagonist. Antithrombotic.<br>References Dewanjee, M., et al.: J. Nucl. Med., 22, 981 (1981), Goodman, S., et al.: J. Biomed. Mater. Res., 45, 240 (1999), Carlsson, S., et al.: Thromb. Res., 115, 9 (2005),<br></p>

<p>Applications A bronchodilator.<br>References Daly, J. W., et al.: J. Med. Chem., 9(3), 273 (1966).<br></p>

<p>Applications A labelled inhibitor of glucose synthesis.<br>References Garcia-Salguero, L. et al.: Arch. Int. Physiol., Biochim. Biophys., 99, 237, (1991); Martirosyan, A., et al.: Biochem. Pharmacol., 68, 1729 (2004);<br></p>

<p>Stability Hygroscopic<br>Applications 3-Sulfoglycolithocholic Acid Disodium Salt is a derivative of Lithocholic acid (L469180). Lithocholic acid (LCA) is a putative tumor promoter,that is shown to be able to inhibit mammalian DNA polymerase β.<br>References Ogawa, A., et al.: Jap. J. Canc. Res., 89, 1154 (1998)<br></p>

<p>Applications Metabolite of 5α-Androst-16-en-3β-ol<br>References Gower, D., et al.: J. Steroid Biochem. Mol. Biol., 63, 81 (1997), Zorko, M., et al.: Steroids, 65, 46 (2000), Diel, P., et al.: Toxicol. Lett., 169, 64 (2007),<br></p>

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

<p>Applications A degradation and metabolic intermediate of Betamethasone (B3270000).<br></p>

<p>Applications Methyltriphenylphosphonium Bromide is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.<br>References Selassie, C.D. et al.: J. Med. Chem., 33, 1914 (1990); Venkatachalam, M.A et al.: Kidney Int., 49, 449 (1996);<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Equilin (E592800).<br>References Enmark, E., et al.: J. Clin. Endocrinol. Metab., 82, 4258 (1997), Wang, Z., et al.: J. Med. Chem., 43, 2419 (2000), Jiang, X., et al.: Steroids, 71, 334 (2006),<br></p>

<p>Applications α-Propyl-α-(1-demethylethyl)-Verapamil is an impurity of Verapamil (V125000, HCl salt) which is a calcium channel blocker.<br>References Atlas, D, and Adler, M.: Proc. Natl. Acad. Sci. USA, 78, 1237 (1981), Janis, R., et al.: Adv. Drug. Res., 16, 309 (1987)<br></p>

<p>Applications Cyclofenil is a weak nonsteroidal estrogen with ovulation induction properties. Mammalian hormone.<br>References Miquel, et al.: J. Med. Chem., 6, 774 (1963),<br></p>

<p>Applications Dabigatran Carboxamide Ethyl Ester is an impurity of Dabigatran Etexilate Mesylate (D100150) which is a nonpeptide, direct thrombin inhibitor.<br>References Hauel, N., et al.: J. Med. Chem., 45, 1757 (2002); Mungall, D., et al.: Curr. Opin. Invest. Drugs, 3, 095 (2002); Stangier, J., et al.: J. Clin. Pharmacol., 45, 555 (2005)<br></p>

<p>Impurity Fulvestrant EP Impurity B<br>Applications A metabolite of Fulvestrant (F862500).<br>References Rao, P., et al.: J. Steroid Biochem., 25, 417 (1986), Wakeling, A., et al.: J. Steroid Biochem. Mol. Biol., 43, 173 (1992), DeFriend, D., et al.: Cancer Res., 54, 408 (1994),<br></p>

<p>Applications Triterpenoid which can inhibit the proliferation of leukemia HL-60 cells.<br>References Cho, J., et al.: Pulmon. Pharmacol. Ther., 23, 190 (2010), Gohil, V., et al.: Nat. Biotechnol., 28, 249 (2010), Saha, S., et al.: J. Agric. Food Chem., 58, 434 (2010),<br></p>

<p>Applications A metabolite of Mianserin.<br>References Begg, E., et al.: Br. J. Clin. Pharmacol., 27, 445 (1989), Tybring, G., et al.: Ther. Drug Monit., 17, 516 (1995), Namera, A., et al.: J. Anal. Toxicol. 22, 396 (1998), van Nederkassel, A., et al.: J. Pharm. Biomed. Anal., 32, 233 (2003),<br></p>

<p>Impurity Ezetimibe Tetrahydropyran Impurity<br>Applications Ezetimibe (E975000) tetrahydropyran impurity.<br></p>

<p>Applications A metabolite of Desoxymetasone (D296970).<br>References Schriks, M., et al.: Environ. Sci. Technol., 44, 4766 (2010), Baeck, M., et al.: Eur. J. Dermatol., 20, 102 (2010), Lee, P., et al.: Bioorg. Med. Chem. Lett., 20, 69 (2010),<br></p>

<p>Applications Atorvastatin Derivative<br></p>

<p>Applications Abiraterone Ethyl Ether is an impurity of Abiraterone (A108490), a steroidal cytochrome P 450 17α-hydroxylase-17,20-lyase inhibitor (CYP17), is currently undergoing phase II clinical trials as a potential drug for the treatment of androgen-dependent prostate cancer.<br>References Denis, L., et al.: Cancer, 72, 3888 (1993); Potter, G.A., et al.: J. Med. Chem., 38, 2463 (1995); Denmeade, S., et al.: Nat. Rev., 2, 389(2002); Scher, H., et al.: J. Clin. Oncol., 23, 8253 (2005)<br></p>

<p>Applications Telmisartan Acyl-β-D-glucuronide is a metabolite of Telmisartan (T017000).<br>References Abe, T., et al.: J. Biol. Chem., 274, 17159 (1999), Hirano, M., et al.: Drug Metab. Dispos., 34, 1229 (2006),<br></p>

<p>Stability Very Hygroscopic<br>Applications Mixed conjugate of dietary phytoestrogen.<br>References Adlercreutz, H;., et al.: J. Steroid Mol. Biol., 52, 97 (1995), Kinjo, J., et al.: Biol. Pharm. Bull., 27, 185 (2004),<br></p>

<p>Applications Pranoprofen is an anti-inflammatory used in ophthalmology.<br>References Ayaki, M., et al.: Biocont. Sci., 15, 97 (2010); Lee, X., et al.: For. Toxicol., 28, 96 (2010);<br></p>

<p>Applications (R,S)-Equol is a human urinary metabolite of the soy isoflavones Daidzein (D103500).<br>References Heinonen, S., et al.: Anal. Biochem., 274, 211 (1999), Setchell, K., et al.: J. Nutr., 132, 3577 (2002), Thigpen, J., et al.: Comp. Med., 53, 607 (2003), Yee, S., et al.: Food Chem. Toxicol., 46, 2713 (2008),<br></p>

<p>Impurity Clobetasol Propionate EP Impurity A / Betamethasone Dipropionate EP Impurity B<br>Applications Betamethasone 17-Propionate (Clobetasol Propionate EP Impurity A) is a degradation product of Betamethasone. Glucocorticoid.<br>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),<br></p>

<p>Applications An oxidative product of the drug Norethindrone (N676000). Norethindrone impurity.<br>References Reif, V., et al.: Pharmaceutical Res., 4, 54 (1987), Rao, P., et al.: Steroids, 59, 621 (1994),<br></p>

<p>Applications Labelled Androgen. It has been used as an androgenic agent. Controlled substance (anabolic steroid).<br>References Bichet, N., et al.: Toxicol. Appl. Pharmacol., 106, 509 (1990), Gustafson, D., et al.: Toxicol. Sci., 53, 245 (2000), Copple, B., et al.: Toxicol. Sci., 77, 172 (2004), Takashima, K., et al.: Life Sci., 78, 2787 (2006),<br></p>

<p>Impurity Ampicillin EP Impurity A ; Amoxicillin USP Related Compound A<br>Applications (+)-6-Aminopenicillanic Acid (Amoxicillin EP Impurity A) is the core structure in penicillins, obtained from the fermentation brew of the Penicillium mold. (+)-6-Aminopenicillanic Acid is used as the main starting block for the preparation of numerous semisynthetic penicillins.<br>References Zel'tser, I.Z. et al.: Gig. Truda Prof. Zabol., 5, 59 (1983); Hamilton-Miller, J.M.T.: Int. J. Antimicrob. Agents, 31, 189 (2008); Novikova, N.D. et al.: Mikol. Fitopatol., 7, 101 (1973);<br></p>

<p>Applications Benzalkonium bromides are an important class of cationic surfactants. They are used as preservatives for ophthalmic, nasal and parenteral products and they are also used as a topical antiseptic and medical equipment disinfectant.<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 Maitani, Y., et al.: Chem. Pharm. Bull., 44, 403 (1996), Fang, J., et al.: Int. J. Pharm., 178, 83 (1999), Iordanskii, A., et al.: Eur. J. Pharm. Biopharm., 49, 287 (2000), Powers, J., et al.: Biochemistry, 44, 15504 (2005),<br></p>

<p>Applications A metabolite of methylmalonic acid and propionic acid in children with methylmalonic acid and propionic acid metabolic disorders.<br>References Duran, M., et al.: Clin. Chimica Acta, 82, 93 (1978), Thompson, G.N., et al.: Pediatric Res., 27, 413 (1990),<br></p>

<p>Applications Benzyl Trisulfide is a secondary metabolite of Petiveria alliacea, on erythrocyte elasticity, relaxation time and membrane morphol. An antibacterial and antifungal 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 Mohandas, N., et al.: Semin. Hematol., 20, 225 (1983), De Sousa, J., et al.: Phytochem., 29, 3653 (1990),<br></p>

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

<p>Applications Labelled δ-Tocopherol. One of the naturally occurring forms of Vitamin E. Isolated from soybean oil.<br>References Emerson, et al.: Science, 83, 421 (1936), Bieri, J.G., et al.: J. Nutr., 104, 850 (1974), Jiang, Q., et al.: Am. J. Clin. Nutr., 74, 714 (2001),<br></p>

<p>Applications Chloramphenicol Succinate Sodium is a derivative of Chloramphenicol (C325030) which are broad spectrum antibiotic obtained from cultures of the soil bacterium Streptomyces venezuelae. It has a broad spectrum of activity against Gram-positive and gram-negative bacteria. Antibacterial; antirickettsial.<br>References Bartz, et al.: J. Biol. Chem., et al.: 172, 445 (1948), Gottlieb, et al.: J. Bacteriol., 55, 409 (1948), Szulczewski, D., et al.: Anal. Profiles Drug Subs., 4, 47 (1975), Price, A., et al.: J. Antibiot., 43, 118 (1981), Shalit, I., et al.: Drugs, 28, 281 (1984),<br></p>