Otros

<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 Pyrene occurs in coal tar. Also obtained by the destructive hydrogenation of hard coal. Found in wastewater in aquatic environments, and possesses genotoxic characteristics relating to estrogenic/androgenic, antiestrogenic and antiandrogenic activity. This compound is a contaminant of emerging concern (CECs).<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 Winterstein, et al.: Z. Physiol. Chem., 230, 162 (1934), Fang, Y. et al.: Env. Toxicol. Chem., 31, 1273 (2012);<br></p>

<p>Applications Palbociclib N-Aldehyde is an intermediate in synthesizing Palbociclib N-β-D-Glucuronide Sodium Salt (P139910), a derivative of Palbociclib (P139900) which is an experimental drug for the treatment of breast cancer being developed by Pfizer. It is a selective inhibitor of the cyclin-dependent kinases CDK4 and CDK6.<br>References Finn, R., et al.: Breast Cancer Res., 11, 5 (2009)<br></p>

<p>Impurity Entacapone EP Impurity A<br>Applications cis-Entacapone (Entacapone EP Impurity A) is the (Z)-Isomer of Entacapone polymorphic form B. Antiparkinsonian.<br>References Karlsson, M., et al.: J. Pharm. Biomed. Anal., 10, 593 (1992), Nissinen, E., et al.: Arch. Pharmacol., 346, 262 (1992), Wikberg, T., et al.: Eur. J. Drug Metab. Pharmacokinet., 18, 359 (1993),<br></p>

<p>Applications The main metabolite of Entacapone and Tolcapone.<br>References Mannisto, P., et al.: Prog. Drug Res., 39, 291(1992), Nishi, H., et al.: J. Pharm. Biomed. Anal., 11, 1277 (1993), Wikberg, T., et al.: Eur. J. Drug Metab. Pharmacokinet., 18, 359 (1993),<br></p>

<p>Stability Hygroscopic<br>Applications An impurity of the antiparkinsonian and antispasmodic agent Memantine (M218000).<br>References Rystov, L. et al.: J. Pharmac. Biomed. Anal., 56, 887 (2011);<br></p>

<p>Stability Hygroscopic<br>Applications 7-Methyl Memantine is an impurity of Memantine (HCl salt, M218000) which is used as an antiparkinsonian and antispasmodic.<br>References Rohde, H., et al.: Fortschr. Med., 100, 2023 (1982), Kornhuber, J., et al.: Eur. J. Pharmacol., 166, 589 (1989), Gortelmeyer, R. and Erbler, H.: Arzneimittel-Forsch., 42, 904 (1992)<br></p>

<p>Applications Cyclopropanecarboxylic Acid is used as a reagent in the synthesis of substituted 4-(thiophen-2-ylmethyl)-2H-phthalazin-1-ones as potent PARP-1 inhibitors. Also used as a reagent in the synthesis of 2-alkyloxazoles as potent and selective PI4KIIIβ inhibitors demonstrating inhibition of HCV replication.<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 Wang, L., et al.: Bioorg. Med. Chem. Lett., 24, 3739 (2014); Keaney, E.P., et al.: Bioorg. Med. Chem. Lett., 24, 3714 (2014)<br></p>

<p>Impurity Atenolol 2-Hydroxy Impurity<br>Applications Hydroxyatenolol is a metabolite of Atenolol (A790075); a cardioselective β-adrenergic blocker, antihypertensive, antianginal, and antiarrhythmic (class II). Atenolol 2-Hydroxy Impurity<br>References Escher, B., et al.: Environ. Sci. Technol., 40, 7402 (2006); Caplar, V., et al.: Anal. Profiles Drug Subs., 13, 1 (1984)<br></p>

<p>Stability Light Sensitive, Temperature Sensitive<br>Applications It is one of the two carotenoids contained within the retina.<br>References Karrer, et al.: Helv. Chim. Acta, 13, 268 (1930), Hlubucek, et al.: J. Chem. Soc. Perkin Trans., 1, 848 (1974), Maoka, T., et al.: Comp. Biochem. Physiol., 83B, 121 (1986),<br></p>