Toxicology

<p>Applications 6-Chloro-2-cyclohexyl-2,3-dihydro-1,3-dioxo-1H-isoindole-5-sulfonamide is an intermediate in the synthesis of Chlorexolone (C327080), a sulfonamide based antibiotic.<br></p>

<p>Applications Emtricitabine Isopropyl Carbamate is a derivative of Emtricitabine (E525000). Emtricitabine is a reverse transcriptase inhibitor. It is an effective antiviral agent against HIV, HBV, and other viruses replicating in a similar manner.<br>References FASEB J., 13, 1511 (1999), Molina, J.-M., et al.: J. InfecSchinazi, R.F., et al.: Antimicrob. Ag. Chemother., 36, 2423 (1992), Shockeor, J.P., et al.: Xenobioica, 26, 189 (1996), Feng, J.Y., et al.: . Dis., 182, 599 (2000)<br></p>

<p>Applications 1,2-benzisoxazol-3-amine (cas# 36216-80-5) is a useful research chemical.<br></p>

<p>Applications 4-Chloro-6-(1,1-dibromoethyl)-5-fluoropyrimidine is impurity of Voriconazole(V760000). Voriconazole is an antifungal (systemic). An ergosterol biosynthesis inhibitor.<br>References Sanati, H., et al.: Antimicrob. Ag. Chemother., 41, 2492 (1997),<br></p>

<p>Applications Rilpivirine Amadori rearrangement 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.<br>References Sun, et al.: J. Med. Chem., 41, 4648<br></p>

<p>Applications Bisphenol AP Mono-β-D-glucuronide is a metabolite of Bisphenol AP (B519485), which is used to prepare triphenylmethane derivatives as inhibitors of hepatitis C virus helicase. Bisphenol AP is a derivative of Bisphenol A (B519495) which is a monomer used for policarbonate and epoxy resins.<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); Chen, C., et al.: J. Med. Chem., 52, 2716 (2009);<br></p>

<p>Impurity Abacavir - In House Impurity<br>Applications (1S,4R)-cis-4-Amino-2-cyclopentene-1-methanol D-Tartrate (Abacavir - In House Impurity) is an intermediate of Abacavir (A104990). 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.<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>Applications (1R,​4S)​-3-​Oxo-2-​azabicyclo[2.2.1]​hept-​5-​ene-​2-​carboxylic acid 1,​1-​Dimethylethyl Ester is an intermediate in synthesizing ent-Abacavir (Abacavir EP Impurity A) (A105015), 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.<br></p>

<p>Applications 5-Amino-1-N-methylindole (CAS# 102308-97-4) is an indole derivative and building block, used in the copper-catalyzed synthesis of sulfonamides.<br>References Chen, Y.; et al.: J. Am. Chem. Soc., 140, 8781 (2018);<br></p>

<p>Applications 2-methoxy-3-pyridinesulfonyl chloride is patented as a reactant used to prepare erythromycin macrolide antibiotics as antibacterial and antiprotozoal agents.<br></p>

<p>Applications 4-(2-Propyn-1-yloxy) Trimethoprim is an analog of T795615, which is an antibacterial compound and a contaminant of emerging concern (CECs).<br>References Manius, G.J., et al.: Anal. Profiles Drug Subs., 7, 445 (1978), Roth, B., et al.: J. Med. Chem., 23, 379 (1980), Brogden, R.N., et al.: Drugs, 23, 405 (1982),<br></p>

<p>Applications Ganciclovir derivative.<br>References Albers, E., et al.: J. Pharm. Sci., 81, 756 (1992), Dias, C., et al.: J. Pharm. Sci., 91, 6607 (2002), Macha, S., et al.: Drug Metab. Dispos., 30, 670 (2002),<br></p>

<p>Applications Erythromycin Glucoheptonate is a derivative of Erythromycin (E649950), an antibiotic.<br>References Delaforge, M. et al.: Biochem. Pharm., 32, 2309 (1983); Niederau, W. et al.: Chemother., 26, 121 (1980);<br></p>

<p>Applications 4-Amino-1-(10-phthalimidodecyl)quinaldinium Iodide is an intermediate for the synthesis of 4-Amino-1-[10-[(2-methyl-4-quinolyl)amino]decyl]quinaldinium Iodide Hydriodide (M493250), which is an impurity of Dequalinium (D288335); the active ingredient in various medications including antiseptic and anti-malarial agents.<br>References Kunisada, Y., et al.: J. Biomolec. Screen., 17, 140 (2012); Zeder-Lutz., G., et al.: Anal. Biochem., 421, 417 (2012)<br></p>

<p>Applications Amoxycilloic Acid Trimer is an impurity of Amoxycilloic Acid (A634265); a degradation product/impurity of Amoxicillin (A634235, 3H2O) which is a semi-synthetic antibiotic related to Penicillin and an antibacterial.<br>References Connor, S., et al.: J. Pharm. Pharmacol., 46, 128 (1994); Van G., et al.: J. Vet. Pharmacol. Ther., 26, 139 (2003); Brogden, R.N., et al.: Drugs, 18, 169 (1979); Bird, A.E., et al.: Anal. Profiles Drug Subs. Excip., 23, 1 (1994)<br></p>

<p>Applications 5-epi Emtricitabine Carboxylic Acid is an impurity of 5-epi Emtricitabine (E524980); an epimer of Emtricitabine (E525000) which is a nucleoside reverse transcriptase inhibitor approved for treatment of HIV-1. Emtricitabine also has antagonistic activity against the hepatitis B virus.<br>References Jeong, L., et al.: J. Med. Chem., 36, 181 (1993); Lim, S. et al.: Arch. Intern. Med., 166, 49 (2006); Smith, K., et al.: AIDS, 23, 1547 (2009)<br></p>

<p>Stability Hygroscopic<br>Applications 4-Chloro-5-chlorosulfonyl Salicylic acid is used in the synthesis of Xipamide (X745150), a diuretic 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 Liebenow, W., et al.: Arzneim.-Forsch., 25, 240 (1975),<br></p>

<p>Applications A novel C-11 epoxy fatty acid, from timothy chokes, stromata of E. typhina, has antifungal activity against Cladosporium herbarum.<br>References Koshino, H., et al.: Agric. Biol. Chem., 53, 2527 (1989),<br></p>

<p>Applications Tenofovir Disoproxil is a therapeutic option for nucleos(t)ide analog (NA)-experienced chronic hepatitis B (CHB) patients infected with hepatitis B virus (HBV). Also, it is an intermediate used in the synthesis of Tenofovir Disoproxil Dimer (T018515), which is a Tenofovir Disoproxil impurity.<br>References Huang, M., et al.: Clin. Drug Investig., 36, 471-478 (2016); Cheng, G., et al.: Chem. Res. Toxicol., 16, 145 (2003)<br></p>

<p>Applications Nodakenin (CAS# 495-31-8) is a useful research chemical compound.<br></p>

<p>Applications Hydroxychloroquine O-Sulfate Sodium Salt is an analogue and potential metabolite of the antimalarial drug Hydroxychloroquine (H916900). Studies suggest that there is increased uptake and retention of Hydroxychloroquine O-Sulfate in blood of rheumatoid arthritis subjects. It is a COVID19-related research product.<br>References Lucherini, T. et al.: Recenti Prog. Med., 33, 446 (1962); Mueting, D.: Nature, 195, 1003 (1962);<br></p>

<p>Applications Amoxicillin (3-​Ethoxy-​1-​methyl-​3-​oxo-​1-​propenyl)​amino Diethylethanamine is an intermediate in the synthesis of APA Amoxicillin Amide (A634270), which is a derivative of Amoxicillin (A634235), a semi-synthetic antibiotic related to penicillin. Antibacterial.<br>References Brogden, R.N., et al.: Drugs, 18, 169 (1979), Bird, A.E., et al.: Anal. Profiles Drug Subs. Excip., 23, 1 (1994),<br></p>

<p>Applications 11-Oxo-fluticasone Furoate is an impurity of Fluticasone(F599500); an anti-inflammatory agent and a steroid.<br>References Meltzer, E. O., et al.: J. Allergy Clin. Immunol., 86, 221 (1990), Mitchison, H. C., et al.: Gut, 32, 260 (1991)<br></p>

<p>Applications Atazanavir is a novel azapeptide HIV protease inhibitor (PI). Antiviral.<br>References Palella, F.J. Jr., et al.: N. Engl. J. Med., 338(13), 853 (1998), Nolan, D., et al.: Drugs, 63(23), 2555 (2003), Musial, B.L., et al.: Am. J. Health Syst. Pharm., 61, 1365 (2004), Wood, R., et al.: J. Acquir. Immune Defic. Syndr., 36, 684 (2004),<br></p>

<p>Applications 4-Desmethylene-4-hydroxymethyl-efinaconazole is a degradation product and potentially a metabolite of the antifungal drug Efinaconazole (E435070).<br>References Sugiura, K., et. al.: Antimicrob. Agents CH., 58, 3837 (2014);<br></p>

<p>Applications Benoxaprofen (B165300) derivative. A 5-benzoxazolealkanoic acid with antiinflammatory activity.<br>References Dunwell, D. W. et al.: J. Med. Chem. 18, 53 (1975)<br></p>