Outros

<p>Impurity Atenolol Desmethyl Impurity<br>Applications Cis-Desmethyl Atenolol is an impurity of Atenolol (A790075), a cardioselective β-adrenergic blocker and antihypertensive agent. Atenolol Desmethyl Impurity<br>References Caplar, V., et al.: Anal. Profiles Drug Subs., 13, 1 (1984);<br></p>

<p>Applications Cyancobalamin-b-carboxylic Acid is a Vitamin B12 (V676005) derivative, which is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood.<br>References Rickes, et al.: Science, 107, 396 (1948); Kirschbaum, J., et al.: Anal. Profiles Drug Subs., 10, 183 (1981); Grasbeck, R., et al.: Clin. Biochem., 17, 99 (1984)<br></p>

<p>Applications β-Hydroxyisobutanol is used as a reagent in the synthesis of pyrazolo[1,5-a]pyridinecarbonyl-substituted spirocyclic piperidine ketals as inhibitors of HCV protein NS4B and of hepatitis C viral replication and their lack of cytotoxicity in human cells.<br>References Tai, V.W.-F., et al.: Bioorg. Med. Chem. Lett., 24, 2288 (2014);<br></p>

<p>Applications Labelled MDV 3100. MDV 3100 is an androgen-receptor antagonist that blocks androgens from binding to the androgen receptor and prevents nuclear translocation and co-activator recruitment of the ligand-receptor complex. MDV 3100 has also been shown to induce tumor cell apoptosis, and has no agonist activity. MDV 3100 is a candidate for the treatment of castration-resistant prostate cancer.<br>References Scher, H.I. et al.: Lancet, 375, 1437 (2010); Bellmunt, J. et al.: Ther. Adv. Med. Oncol., 2, 189 (2010); Ryan, C.J. et al.: J. Clin. Oncol., 29, 3651 (2011);<br></p>

<p>Impurity Atenolol EP Impurity D<br>Applications 4-(3-Chloro-2-hydroxypropoxy)benzeneacetamide is an impurity of Atenolol (A790075), a cardioselective β-adrenergic blocker. Atenolol EP Impurity D<br>References Caplar, V., et al.: Anal. Profiles Drug Subs., 13, 1 (1984); Pai, N.R., et al.: J. Chem. Pharma. Rsch., 4, 375 (2012);<br></p>

<p>Applications Delorazepam 4-Oxide is an N-oxide of Delorazepam (D230675) and an intermediate in the synthesis of Lorazepam (L469850).<br>References Cepanec, I. et al.: Org. Proc. Res. Dev., 10, 1192 (2006); Guerrato, A. et al.: Boll. Chim. Farm., 126, 170 (1987);<br></p>

<p>Applications Lindane-d6 is very toxic. It was an effective insecticide on mosquitoes, house flies, and on German and American cockroaches.<br>References Tanaka, K., et al.: Pestic. Biochem. Physiol., 6, 386-391 (1976)<br></p>

<p>Applications 5-Methylfurfural is a common chemical reagent used in a wide variety of chemical reactions and organic synthesis. Polycyclic pyridazine based derivatives are synthesized with this compound to form antimicrobial agents. Also used in the preparation of antiinflammatory diarylpentanoid analogues.<br>References Deeb, A. et al.: Eur. Chem. Bull., 3, 897 (2014); Leong, S. et al.: Molecules, 19, 16058 (2014);<br></p>

<p>Impurity Diazepam EP Impurity E<br>Applications 6-Chloro-1-methyl-4-phenyl-2(1H)-quinazolinone (Diazepam EP Impurity E) is an impurity of Temazepam (T017200), which is a pharmacologically active metabolite. It is used as a sedative and hypnotic drug.<br>References Sarteschi, P., et al.: Arzneim.-Forsch., 22, 93 (1972), Schwandt, H.J., et al.: Xenobiotica, 4, 733 (1974), Curry, S.H., et al.: Br. J. Pharmacol., 57, 427 (1976), Heel, R.C., et al.: Drugs, 21, 321 (1981)<br></p>

<p>Impurity Fulvestrant EP Impurity A<br>Applications Fulvestrant (F862500) impurity A. The S-isomer of Fulvestrant.<br>References Sharman, G.J., et al.: Mag. Resonance Chem., 39, 549 (2001),<br></p>

<p>Applications (15R)-Bimatoprost Acid is an impurity of the antiglaucoma agent Bimatoprost (B386820). (15R)-Bimatoprost Acid is a metabolically stable analog of PGF2α (P838625) and is a potent agonist for the FP receptor.<br>References Balapure, A.K. et al.: Biochem. Pharmacol., 38, 2375 (1989); Hellberg, M.R. et al.: J. Ocular Pharmacol. Ther., 19, 97 (2003); Krishna, P.M. et al.: J. Pharm. res., 4, 2381 (2011); Resul, B., et al.: J. Med. Chem., 36, 243 (1993)<br></p>

<p>Applications Carfilzomib (2S,4R)-Diol is a derivative of Carflizomib (C183460), a second-generation proteasome inhibitor that is used as a treatment in relapsed and refractory multiple myeloma.<br>References Fostier, K., et al.: Oncotargets. Therap., 5, 237 (2012); Geurink, P.P., et al.: J. Med. Chem., 56, 1262 (2013); McCormack, P.L., et al.: Drugs., 72, 2023 (2012);<br></p>

<p>Impurity Lorazepam USP Related Compound E<br>Applications 6-Chloro-4-(2-chlorophenyl)-2-quinazolinemethanol is a compound related to Lorazepam, an anxiolytic, and anticonvulsant. Lorazepam USP Related Compound E<br>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),<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Memantine (M218000), used for the treatment of neurological disorders.<br>References Eiichi, K., et al.: Chem. Pharm. Bull., 33, 4680 (1985),<br></p>

<p>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 1,3-Dimethyl Barbituric Acid (Urapidil Impurity 4) is a derivative of Barbituric acid (B118650). All of the barbituric acid derivatives which have been reported to have pronounced hypnotic activity are disubstituted in the 5-position.<br>References Gupta, K., et al.: Eur. J. Med. Chem., 17, 448 (1982), Weber, L., et al.: Curr. Med. Chem., 9, 2085 (2002), Skiles, J., et al.: Curr. Med. Chem., 11, 2911 (2004),<br></p>

<p>Applications Azure B is a dye used for staining semi-thin sections of plant tissues. Azure B is used for staining semi-thin sections of plant tissue. This dye is also useful in the NCCLS method for blood smears and Lillie's modified Nocht's method for paraffin sections. Dyes and metabolites.<br>References 1. Penney, D.P., et al. 2002. Biotech. Histochem. 77: 237-275. PMID: 12564600<br></p>

<p>Applications 7-Ketoabiraterone Acetate 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 Fulvestrant (F862500) impurity F.<br></p>

<p>Applications 3-Phenoxy-1,2-propanediol (cas# 538-43-2) is a useful research chemical.<br></p>

<p>Applications A metabolite of Furazolidone and Nitrofuran.Environmental contaminants; Food contaminants; Heat processing contaminants<br>References Mir, G., et al.: Indian J. Anim. Sci., 54, 888 (1984), Gottschall, D., et al.: J. Agric. Food Chem., 43, 2520 (1995)<br></p>

<p>Applications As a dye for wool and silks; as colorant in food, drugs, and cosmetics. In biochemistry as an adsorption-elution indicator for chloride estimations. Tartrazine (otherwise known as E number E102, C.I. 19140, or FD&amp;C Yellow 5) is a synthetic lemon yellow azo dye used as a food coloring. Tartrazine appears to cause the most allergic and intolerance reactions of all the azo dyes, particularly among asthmatics and those with an aspirin intolerance. Dyes and metabolites, Environmental Testing.A recent report has shown that Tartrazine may be useful in 3D bio-printing of organ-like architectures.<br>References Rowe, K.S., et al.: J. Pedriatics, 125, 691 (1994), Tanaka, T., et al.: Food Chem. Toxicol., 44, 179 (2006); Chem. and Eng News Page 4 May 6, 2019<br></p>

<p>Stability Hygroscopic<br>Applications Food Red No. 102 is an artificial coloring food additive. Dye. Dyes and metabolites, Environmental Testing<br>References McCann, D. et al.: Lancet. 370, 1560 (2007); Kim, Y. et al.: Text. Res. J., 71, 318 (2001);<br></p>