Toxicology

<p>Applications Atorvastatin impurity. Atorvastatin Methyl Ester<br>References Graul, A., et al.: Drugs Future, 22, 956 (1997),<br></p>

<p>Impurity Amlodipine EP Impurity H<br>Applications Amlodipine Besilate (A633500) impurity. Used in the process for preparing Amlodipine benzenesulfonate. Amlodipine EP Impurity H<br></p>

<p>Applications A metabolite of Venlafaxine.<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>Impurity Irinotecan USP Related Compound E<br>Applications An anticancer drug, showed strong activity against various murine tumors. A Camptothecin (CPT) derivative as antineoplastic agent against drug-resistant tumors. Irinotecan USP Related Compound E.<br>References Brangi, M., et al.: Cancer Res., 59 5938 (1999), Miyake, K., et al.: Cancer Res., 59, 8 (1999) , Bom, D., et al.: J. Med. Chem., 43, 3970 (2000) , Gamcsik, M., et al.: Mol. Cancer Ther., 1, 11 (2001).<br></p>

<p>Applications A new Sildenafil (S435000) analogue.<br>References Balayssac, S., et al.: J. Pharm. Biomed. Anal., 50, 602 (2009),<br></p>

<p>Impurity Atorvastatin Pyrrolidone Analog (USP)<br>Stability Light Sensitive<br>Applications A photodegradation product of Atorvastatin (a cyclic impurity of Atorvastatin). Atorvastatin Pyrrolidone Analog (USP).<br>References Roger, D., et al.: Clin. Exp. Dermatol., 19, 88 (1994), Cosa, G., et al.: Photochem. Photobiol., 80, 159 (2004), Kerwin, B., et al.: J. Pharm. Sci., 96, 1468 (2007),<br></p>

<p>Applications Elagolix Sodium is a novel uracil phenylethylamine that acts as potent human gonadotropin-​releasing hormone receptor (hGnRH-​R) antagonist.<br>References Chen, C. et al.: J. Med. Chem., 51, 7478 (2008);<br></p>

<p>Applications Carbimazole, a prodrug of Methimazole (M260300), is used in the treatment of hyperthyroidism.<br>References Marchant, B., et al.: J. Clin. Endocrinol. Metab., 45, 1187 (1977), Johnsson, E., et al.: Lancet, 350, 1520 (1997),<br></p>

<p>Applications A metabolite of Varenicline. Metabolite M5.<br>References Dow, J., et al.: Drug Metab. Dispos., 22, 738 (1994), Toide, K., et al.: Biochem. Pharmacol., 67, 1269 (2004), Coe, J., et al.: J. Med. Chem., 48, 3474 (2005), Doll, R., et al.: Br. J. Cancer, 92, 426 (2005),<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>Applications This is a controlled substance (depressant). Anticonvulsant; sedative; hypnotic.<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 Goldenthal, E.I., et al.: Toxicol. Appl. Pharmacol., 18, 185 (1971), Chao, M.K.C., et al.: Anal. Profiles Drug Subs., 7, 359 (1978),<br></p>

<p>Stability Hygroscopic<br>Applications Decarboxy Cilastatin is an impurity in the synthesis of Cilastatin (C441100), prevents renal metabolism of penem and carbapenem antibiotics by specific and reversible dehydropeptidase I inhibition. Antibacterial adjunct.<br>References Finlay, K.R., et al.: Invest. Ophthalmol. Visual Sci., 24, 1147 (1983), Norrby, S.R., et al.: Antimicrob. Agents Chemother., 23, 300 (1983), Washburn, D.E., et al.: J. Antimicrob. Chemother., 12, 39 (1983),<br></p>

<p>Impurity Fluconazole EP Impurity D<br>Applications 2-Desfluoro Fluconazole (Fluconazole EP Impurity D) is an impurity of the antifungal agent Fluconazole (F421000).<br>References Ramesh, B. et al.: J. Pharm. Res., 4, 1401 (2011); Al-Rimawi, F.: Jor. J. Chem., 4, 357 (2009);<br></p>

<p>Applications A protected metabolite of the fluorinated quinolone antibacterial Ciprofloxacin.<br></p>

<p>Applications Methyl Benzilate is a reactant in the synthesis of Trimethadione (T796155), an anticonvulsant and antiepileptic agent used in the treatment of pregnant women. Prenatal exposure to snti-epileptic drugs (AEDs) has indicated increased risk of major or minor congenital malformation.<br>References Pastore, V., et. al.: Bioorg. Med. Chem., 21, 841 (2013); Ahir, B. et al.: Toxicol. Vitro., 28, 948 (2014); Pastore, V. et al.: Bioorg. Med. Chem., 21, 841 (2013)<br></p>

<p>Applications ent-Lamivudine Triphosphate Triethylammonium Salt is a metabolite of Lamivudine (L172500), which is a potent nucleoside reverse transcriptase inhibitor. Antiviral. Lamivudine has been used for treatment of chronic hepatitis B.<br>References Burgess, K., et al.: Chem. Rev., 100, 2047 (2000), Gallois-Montbrun, S., et al.: Biochem. Pharmacol., 68, 1749 (2004); Morris, D.M., J. Pharm. Biomed. Anal., 12, 255 (1944), Nevens, B.F., et al.: Gastroenterology, 113, 1258 (1997), Perry, C.M., et al.: Drugs, 53, 657 (1977)<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 α-(4-Chlorophenyl)-2-ethyl-1,3-dioxolane-2-acetonitrile is an impurity of Pyrimethamine (P997240), a dihydrofolate reductase inhibitor; generally used in combination with other antimicrobial agents. Antiprotozoal (Toxoplasma); antimalarial.<br>References Loutfy, M.A., et al.: Anal. Profiles Drug Subs., 12, 463 (1983); Leport, C., et al.: Am. J. Med., 84, 94 (1988); McIntosh, H.M., et al.: Ann. Trop. Med., Parasitol., 93, 265 (1998); Plowe, C.V., et al.: Br. Med. J., 328, 545 (2004);<br></p>

<p>Applications Decapeptide LH-RH antagonist. Used in treatment of infertility.<br>References Strickley, R.G., et al.: Pharm. Res., 7, 530 (1990), Jung, G., et al.: J. Med. Chem., 35, 3942 (1992), Rabinovici, J., et al.: J. Clin. Endocrinol. Metab., 75, 1220 (1992), Devroey, P., et al.: Hum. Reprod., 13, 3023 (1998),<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>Impurity Cetirizine EP Impurity G Dihydrochloride<br>Applications 4-(p-Chloro-α-phenylbenzyl)-1-piperazineethanol is used in the synthesis of antifungal triazole and imidazole derivatives. Impurity of an intermediate in the formation of Cetrizine.<br>References Rezaei, Z. et al.: Archiv. Pharm., 344, 658 (2011);<br></p>

<p>Applications: N,N'-Di(2-hydroxybenzyl)ethylenediamine-N,N'-diacetic Acid Monohydrochloride Hydrate is a component for treating or preventing obesity and insulin resistance and mitrochondrial-associated disorders.N,N'-Di(2-hydroxybenzyl)ethylenediamine-N,N'-diacetic Acid Monohydrochloride Hydrate is also the monohydrochloride hydrate of HBED (H107503), which is an iron chelator useful in treating iron overload.<br>References Milburn, Michael, WO 2007008548, (2007)Bergeron, Raymond J., WO 9939706, (1999)<br></p>

<p>Applications Gypsogenic Acid, a triterpenoid saponin of the Caryophyllaceae family, is shown to be a promising antiplaque and anticaries agent.<br>References Boettger, S., et al.: Phytochemistry Lett., 4, 59 (2011); Cunha, L.C.S., et al.: Z. Naturforschung C.: J. Bioscience., 62, 668 (2007)<br></p>

<p>Applications Acyclic phosphonate nucleotide analogue; reverse transcriptase inhibitor. Used as an anti-HIV agent. Antiviral.<br>References Shaw, J.-P., et al.: Pharm. Res., 14, 1824 (1997), Wyles, D., et al.: Clin Infect. Dis., 40, 174 (2005), Peng, J., et al.: J. Clin. Pharmacol., 46, 265 (2006), Seminari, E., et al.: J. Antimicrob. Chemother., 60, 831 (2007),<br></p>

<p>Applications Triethylamine Trihydrofluoride is used in the synthesis of modified siRNA’s in vivo used to inhibit hepatitis B replication (1). Used in RNA synthesis in the removal of t-butyldimethylsilyl protection (2). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA). Environmental contaminants; Food contaminants.<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 1. Marimani M. et al.: Bioorg Med Chem. 2013 Oct 15;21(20):6145-55. 2. Westman, E. et al.: Nucleic Acids Res. 1994 Jun 25;22(12):2430-1<br></p>

<p>Applications 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.<br>References Sun, et al.: J. Med. Chem., 41, 4648 (1998), Kashiwada, et al.: Bioorg. Med. Chem. Lett., 11, 183 (2001),<br></p>

<p>Applications Ledipasvir is most commonly used in combination with sofosbuvir for treatment in chronic hepatitis C genotype 1 patients. It inhibits an important viral phosphoprotein, NS5A, which is involved in viral replication, assembly, and secretion.<br>References Lawitz, E., et al.: J. Hepatol., 57, 24 (2012); Afdhal, N., et al.: New England J. Med., 370, 1889 (2014)<br></p>

<p>Applications Second-generation cephalosporin antibiotic. Antibacterial.<br>References Gray, B.M., et al.: Antimicrob. Agents Chemother., 13, 988 (1978), Lorenz, L.J., et al.: Anal. Profiles Drug Subs., 9, 107 (1980), Hori, R., et al.: J. Pharm. Pharmacol., 40, 646 (1988),<br></p>

<p>Applications Sulfachlorpyridazine is an antibacterial compound.<br>References Wammer, K.: Environ. Toxicol. Chem. 25, 1480 (2006).<br></p>

<p>Impurity Azithromycin EP Impurity A<br>Applications 9-Deoxo-9a-aza-9a-homo Erythromycin A (Azithromycin EP Impurity A) is a novel intermediate of Azithromycin that acts as antibiotic.<br>References Krajacic, M.B., et al.: J. Antibiot., 58, 380 (2005),<br></p>

<p>Applications A metabolite of Malachite Green in seafood products. A triphenylmethane dye with fungicidal and limited antiseptic activity. The term Malachine green applies to the oxalate as well as the chloride. Harmful if swallowed. Avoid release to the environment. Dyes and metabolites, Environmental Testing<br>References Carter, S.G., et al.: J. Biochem. Biophys. Methods, 7, 7 (1982), Saikan, S., et al.: J. Chem. Phys., 79, 4154 (1983), Clemmensen, S., et al.: Arch. Toxicol., 56, 43 (1984),<br></p>

<p>Applications Sinigrine, is a glucosinolate which is found naturally in Cruciferae including the genus Brassica. When enzymatically hydrolysed, Sinigrine yields isothiocyanates and give a pungent taste. Both Sinigrine, and isothiocyanates, have been shown to have anticancer activity as well as antifungal and antibacterial properties.<br>References Cools, K., et al.: J. Chromatograohy B., 901, 115 (2012); Okullcz, M., et al.: Materiae Veg., 65 (3), 217 2010;<br></p>

<p>Stability Light Sensitive<br>Applications Luliconazole is an azole antifungal drug.<br>References Uhida, K., et al.: J. Infect. Chemother., 10, 216 (2004); Niwano, ., et al.: Antimicro. Agents Chemother., 42, 967 (1998),<br></p>

<p>Stability Hygroscopic<br>Applications VANCOMYCIN (cas# 1404-90-6) is a useful research chemical.<br></p>

<p>Applications Mangiferin is a xanthonoid, a chemical compound found in mangoes and in Anemarrhena asphodeloides rhizomes. Mangiferin has effect of hepatinica and choleretic, and is used to therapy hepatitis. Mangiferin is an anti-inflammatory, antivirotic, central nervous system inhibit function and immunologic suppression. Mangiferin has curative effect on chronic bronchitis. Mangiferin has cytotoxicity effect on hepatocellularcarcinoma ce1l, and may induce apoptosis. Mangiferin has the effect of antioxidation and delaying caducity.<br>References Tawab, M., et al.; Drug Metab. Dispos., 31, 1065 (2003), Yim, J., et al.: Biol. Pharm. Bull., 27, 1580 (2004), Kim, Y., et al.: J. Microbiol. Biotechnol., 18, 1109 (2008), Joh, E., et al.: Biochem. Pharmacol., 82, 278 (2011),<br></p>

<p>Applications N-Formyl Erythromycin A is a derivative of Erythromycin (E649950), an antibiotic medication.<br>References Koch, W.L., et al.: Anal. Profiles Drug Subs., 8, 157 (1979),<br></p>

<p>Applications (R)-(+)-2-Amino-3-benzyloxy-1-propanol is used as a reagent to synthesize beta-amino alcohols, compounds that are used as therapeutic agents to treat heart disease. (R)-(+)-2-Amino-3-benzyloxy-1-propanol is also used as a reagent to synthesize 15-membered macrolide antibiotics, drugs that are used to treat respiratory tract infections.<br>References Fisher, G., et al.: J. Org. Chem., 60, 2026 (1995); Metro, T., et al.: J. Org. Chem., 72, 6556 (2007); Sugimoto, T., et al.: Bioorg. Med. Chem., 20, 5787 (2012)<br></p>

<p>Applications Levofloxacin Hemihydrate is a S-(-) form of Ofloxacin (O245750), an antibiotic used against gram-negative organisms.<br>References Kato, M., et al.: Arzneim.-Forsch., 42, 365 (1992); North, D.S., et al.: Pharmacotherapy, 18, 915 (1998); Hwang, D.G., et al.: Br. J. Ophthalmol., 87, 1004 (2003);<br></p>

<p>Impurity Azithromycin Related Compound O<br>Applications Azithromycin N-Ethyl is an analogue of Azithromycin (A927000), an semi-synthetic macrolide antibiotic that is related to Erythromycin (E649950).<br>References Bright, G.M., et al.: J. Antibio., 41, 1029 (1988);<br></p>

<p>Applications Used as an antibacterial agent. LD50 &gt;5000 mg/kg for oral administration to rats.<br>References Goldenthal, E.I.: Toxicol. Appl. Pharmacol., 18, 185 (1971)<br></p>

<p>Stability Hygroscopic<br>Applications Tenofovir Monohydrate is an HIV-1 RT inhibitor and antiretroviral drug.<br>References Zhao, Z., et al.: Method for preparing medical salts and/or derivatives of tenofovir disoproxil, and their application for preventing and/or treating HBV and HIV/AIDS infections, CN 101574356 (2009);<br></p>

<p>Applications A metabolite of Lamivudine (L172500).<br>References Soudeyns, H., et al.: Antimicrob. Agents Chemother., 35, 1386 (1991), Denapoli, L., et al.: Nucleosides Nucleotides, 12, 21 (1993),<br></p>

<p>Applications PSI-6130 is an experimental treatment for hepatitis C. PSI-6130 is a member of a class of antiviral drugs known as nucleoside polymerase inhibitors. PSI-6130 inhibits the hepatitis C virus RNA dependant RNA polymerase called NS5B.<br>References Clark, J., et al.: J. Med. Chem., 48, 5504 (2005); Stuyver, L., et al.: Antiviral Chem. Chem., 17, 79 (2006)<br></p>

<p>Applications Succinylacetone (SA) is a specific marker for the inherited metabolic disease, hepatorenal tyrosinemia. It was developed a stable-isotope for the determination of SA in dried blood spots (DBS) and liquid urine using a 13C4-SA as internal standard. The method was applied retrospectively and prospectively for the diagnosis of hepatorenal tyrosinemia and for follow-up of patients under treatment.<br>References Kvittingen, E., et al.: Inher. Metab. Dis., 14, 554 (1991), Lindstedt, S., et al.: Lancet, 340, 813 (1992), Schulze, A., et al.: Clin. Chem., 47, 1424 (2001), Allard, P., et al.: Clin. Biochem., 37, 1010 (2004),<br></p>

<p>Applications Metabolite of Diclofenac.<br>References Duffy, J.C., et al.: J. Pharm. Pharmacol., 48, 883 (1996), Oza, V., et al.: J. Med. Chem., 45, 321 (2002), Bajaj, S., et al.: Bioorg. Med. Chem., 12, 3695 (2004), Teffera, Y., et al.: Drug Metabolism Lett., 2, 35 (2008),<br></p>

<p>Stability Too Hygroscopic<br>Applications Erdosteine Thioacid Diammonium Salt is the active metabolite of Erdosteine (E596050), a mucolytic. Erdosteine was developed for the treatment of chronic obstructive bronchitis.<br>References Dechant, K., et al.: Drugs, 52, 875 (1996); Braga, P., et al.: Arzneim.-Forsch., 49, 344 (1999); Braga, P., et al.: Antimicrob. Agents Chemother., 43, 1013 (1999); Kuvandik, G., et al.: Toxicol. Pathol., 36, 714 (2008); Koyu, A., et al.: Mol. Cell. Biochem., 331, 43 (2009); Fourches, D., et al.: Chem. Res. Toxicol., 23, 171 (2010)<br></p>

<p>Applications 4'-Dimethylamino 7,8-Dihydroxyflavone is a synthetic 7,8-Dihydroxyflavone derivative which promotes neurogenesis and exhibits potent antidepressant effect. The 7,8-dihydroxy groups are essential for the agonistic effect. 4'-Dimethylamino 7,8-Dihydroxyflavone displays higher TrkB agonistic activity than that of 7,8-Dihydroxyflavone (D452830).<br>References Thoenen, H., et al.: Trends Neurosci., 14, 165 (1991); Nibuya, M., et al.: J. Neurosci., 15, 7539 (1995); Kaplan, D., et al.: Curr. Opin. Neurobiol., 10, 381 (2000); Saarelainen, T., et al.: J. Neurosci., 2003, 23, 349 (2003);<br></p>

<p>Applications (+)-Costunolide is an inhibitor of osteoclast differentiation, acting as an anti-inflammatory and anti-oxidant agent. It is a sesquiterpene lactone which mediates apoptosis.<br>References Cheon, Y. et al.: Phytother. Res., 28, 586 (2014); Butturini, E. et al.: Eur. J. Pharm., 730, 107 (2014);<br></p>

<p>Applications Bufrolin is an analog of Sodium Cromoglycate (C815000). It is a mast cell stabilizer drug and is shown to display agonism at either human or rat G protein-coupled receptor GPR35.<br>References Church, Martin K., et al.: Int. Arch. Aller. A. Imm., 66, 281-2 (1981); MacKenzie Amanda E., et al.: Mol. Pharmacol., 85(1), 91-104 (2014)<br></p>

<p>Applications 5-phenyl-1,3-oxazolidin-2-one (cas# 7693-77-8) is a useful research chemical.<br></p>

<p>Applications Labelled Dodecyl Phthalate (D525380). Dodecyl Phthalate is used in the preparation of Cytarabine (C998100) derivatives as anticancer agents.<br>References Aoshima, M., et al.: Cancer Res., 36, 2726 (1976), Wang, N., et al.: Bioorg. Med. Chem. Lett., 15, 4064 (2005), Marie-Helene, G., et al.: Bioorg. Med. Chem., 2009, 17, 6340 (2009),<br></p>

<p>Applications A metabolite of the fluorinated quinolone antibacterial Ciprofloxacin.<br></p>

<p>Impurity Mometasone Furoate EP Impurity B<br>Stability Light Sensitive<br>Applications (11β,16α,17α)-9-Chloro-17-(2,2-dioxido-5H-1,2-oxathiol-4-yl)-17-[(2-furanylcarbonyl)oxy]-11-hydroxy-16-methyl-androsta-1,4-dien-3-one (Mometasone EP Impurity B) is an impurity of Mometasone Furoate, a topical corticosteroid used as an anti-inflammatory.<br>References Shapiro, E.L., et al.: J. Med. Chem., 30, 1581 (1987); Graft, D., et al.: J. Allergy Clin. Immunol., 98, 724 (1996)<br></p>

<p>Applications 5,6-Dihydroyangonin is a derivative of Yangonin (Y100550), a lactone isolated from the Kava plant (Piper methysticum). 5,6-Dihydroyangonin was shown to exhibit potential antibacterial and antifungal activities.<br>References Keledjian, J., et al.: J. Pharm. Sci., 77, 1003 (1988), Clouatre, D., et al.: Toxicol. Lett., 150, 85 (2004), Mathews, J., et al.: Drug Metab. Dispos., 33, 1555 (2005), Clayton, N., et al.: Exp. Toxicol. Pathol., 58, 223 (2007),<br></p>

<p>Applications Medicagenic acid is a versatile compound extracted from some plants, such as the branches of Eucommia ulmoides. It has antifungal properties towards candida albicans.<br>References Xiong, W.; et al.: Chem. Nat. Compd., 54, 1009 (2018); Dorsaz, S.; et al.: Antimicrob. Agents Chemother., 61, 00829-17/1 (2017).<br></p>

<p>Applications Cefdaloxime is an orally administered cephalosporin that has activity against Haemophilus influenzae, a bacteria that causes meningitis in humans. Cefdaloxime is also the active metabolite of HR916K, a cephalosporin ester.<br>References Jones, R. &amp; Erwin, M.: Diag. Micro. Infect. Dis., 15, 693 (1992); Jones, R. &amp; Erwin, M.: J. Clin. Micro., 30, 1297 (1992); Käyhty, R., et al.: J. Infect. Dis., 147, 1100 (1983)<br></p>

<p>Impurity Sofosbuvir Metabolite GS331007<br>Applications RO 2433 is the deaminated metabolite of β-D-2'-Deoxy-2'-fluoro-2'-C-methylcytidine, an effective inhibitor of hepatitis C virus (HCV) replication in vitro.<br>References Asif, G., et. al.: Antimicrob. Agents Ch., 51, 2877 (2007)<br></p>

<p>Applications Prednienic Acid is a glucocorticoid steroid. It is used to synthesize various anti-inflammatory compounds such as macrolactonolides by conjugating Prednienic Acid with macrolides.<br>References Tomaskovic, L., et al.: Bioorg. Med. Chem., 21, 321 (2013);<br></p>

<p>Stability Hygroscopic<br>Applications Desacetyl Rifampicin Quinone is an impurity of Rifampicin (R508000).<br>References Wilson, W.L. et al.: J. Chrom., 144, 270 (1977);<br></p>

<p>Applications An impurity of Isoniazid (I821450), which is an antibiotic for treatment of Mycobacterium tuberculosis and inhibits mycolic acid biosynthesis. Intermediate used for the synthesis of analogs of antitumor agent 1-acetyl-2-picolinoylhydrazine.<br>References Brewer, G.A., et al.: Anal. Profiles. Drug. Subs., 6, 183 (1977), Weber, W.W., et al.: Clin. Pharmacokinet., 4, 401 (1979); Rutner, H., et al.: Cancer. Chem. Rep., 58, 803 (1974)<br></p>

<p>Applications Acridine analog. DNA intercalating agent.<br>References Hansch, C. et al.: Compr. Med. Chem. 2, 703 (1990)<br></p>

<p>Applications N-Demethyl Rifampicin is a metabolite of Rifampicin (R508000).<br>References Marsili, L., et al.: J. Antibiot., 37, 1209 (1984), Nikaido, H., et al.: Antimicrob. Ag. Chemother., 37, 1393 (1993), Piddock, L., et al.: J. Antimicrob. Chemother., 45, 159 (2000),<br></p>

<p>Applications 4-Benzyloxyacetophenone is used in preparation of inhibitors of various proteins such as hepatitis C virus polymerase, glucosylceramide synthase and protein tyrosine phosphatase 1B.<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 Deng, Y., et al.: Bioorg. Med. Chem. Lett., 19, 5363 (2009); Lee, L., et al.: J. Biol. Chem., 274, 14662 (2009); Liu, Z., et al.: Bioorg. Med. Chem. Lett., 21, 3755 (2011)<br></p>

<p>Applications Terbinafine is used to treat infections caused by a fungus.<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>Impurity Itraconazole Impurity 16<br>Applications cis-[2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-4-yl-methyl)-1,3-dioxolan-4-yl]methyl Methanesulfonate (Itraconazole Impurity 16) is an impurity in the synthesis of Itraconazole (I937500), an orally active antimycotic structurally related to Ketoconazole. Antifungal.<br>References Espinel-Ingroff, A., et al.: Antimicrob. Agents Chemother., 26, 5 (1984), Heykants, J., et al.: Mycoses, 32, Suppl 1, 67 (1989);<br></p>

<p>Applications Erythromycin Lactobionate is an antibiotic used to reduce the prevalence of drug resistant bacteria as well as keeping constant the efficacy of other antibacterial drugs.<br>References Kiso, S. et al.: Anticanc. Res., 20, 2827 (2000); Broad, J. et al.: Brit. J. Pharm., 168,1859 (2013); Itoh, Z., et al.: Antimicrob. Agents Chemother., 26, 863(1984)<br></p>