Bêta-bloquants

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

Applications Labelled Nadolol (N201052). β-Adrenergic blocker. Antihypertensive; antianginal.
References Dreyfuss, J., et al.: J. Clin. Pharmacol., 17, 300 (1977), Sibley, P.L., et al.: Toxicol. Appl. Pharmacol., 44, 379 (1978), Slusarek, L., et al.: Anal. Profiles Drug Subs., 9, 455 (1980),

Impurity Olmesartan Medoxomil EP Impurity D
Applications Olmesartan medoxomil intermediate.
References Birkenhager, W., et al.: J. Hypertens, 17, 873 (1999), Whittaker, A., et al.: Br. J. Cardiol., 12, 125 (2005),

Applications 3-Ethyl 3,5-Didemethyl Memantine is an impurity of Memantine (HCl salt, M218000) which is used as an antiparkinsonian and antispasmodic.
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)

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

Impurity Acebutolol EP Impurity A
Applications 3’-Acetyl-4’-(2,3-epoxypropoxy)butyranilide (Acebutolol EP Impurity A) is a useful intermediate in the preparation of Acebutolol.
References Andresen, B., et al.: Drug Metab. Disposition, 7, 360 (1979),

Applications Protected Atorvastatin.

Applications AICAR is a nucleoside analogue that is able to enter nucleoside pools and is able to significantly increase levels of adenosine during periods of ATP breakdown. Adenosine-regulating agents (ARAs) have been recognized for therapeutic potential in myocardial ischemia. Cardioprotective.
References Mullane, K., et al.: Trends Cardiovasc Med., 3, 227 (1993), Browne, G.J., et al.: J. Biol. Chem., 279, 13, 12220 (2004)

Impurity Timolol EP Impurity G; Timolol BP Impurity G
Stability Moisture Sensitive
Applications 4-​(4-Morpholinyl)​-1,​2,​5-​thiadiazol-​3(2H)​-​one 1-Oxide (Timolol EP Impurity G; Timolol BP Impurity G) is an impurity of Timolol (T4437005), an antihypertensive, an adrenergic blocking agent (1); antiarrhythmic (class II); antianginal; antiglaucoma (2) and antihypertensive (3) agent.
References 1. Wasson, B. et al.: J. Med. Chem. 1972 Jun;15(6):651-5.2. Heel, R. et al.: Drugs. 1979 Jan;17(1):38-55.3. Rofman, et al.: Hypertension. 1980 Sep-Oct;2(5):643-8.

Stability Hygroscopic
Applications A labelled metabolite of Propranolol.
References Walle, T., et al.: Drug Metab. Dispos., 13, 204 (1985), Mason, R., et al.: J. Med. Chem., 34, 869 (1991), Anderson, R., et al.: Biochem. Pharmacol., 52, 341 (1996), Hung, D., et al.: J. Pharmacol. Exp. Ther., 297, 780 (2001),

Applications Labelled Celiprolol. Cardioselective β1-adrenergic blocker. Antihypertensive, antianginal.
References Mazzo, D.J., et al.: Anal. Profiles Drug Subs., 20, 237 (1991), Meininger, C., et al.: Biochem. J., 349, 353 (2000), Ruan, H., et al.: Diabetes, 51, 1319 (2002), Liao, Y., et al.: Circulation, 110, 692 (2004),

Impurity Atenolol USP Related Compound D; Atenolol EP Impurity F
Applications 4,4'-[[(1-methylethyl)imino]bis[(2-hydroxy-3,1-propanediyl)oxy]]bis-benzeneacetamide (Atenolol USP Related Compound D; Atenolol EP Impurity F) is an impurity of Atenolol (A790075), a cardioselective β-adrenergic blocker.
References Caplar, V., et al.: Anal. Profiles Drug Subs., 13, 1 (1984); Caplar, V., et al.: Acta. Pharma. Jugoslavica., 33, 71 (1983);

Applications Labelled Dopamine. Endogenous catecholamine with α and β-adrenergic activity. Cardiotonic; antihypotensive.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Carter, J.E., et al.: Anal. Profiles Drug Subs., 11, 257 (1982), Dasta, J.F., et al.: Pharmacotherapy, 6, 304 (1986),

Applications An optically active metabolite of Carvedilol (C184625), a nonselective ß-adrenergic blocker with α1-blocking activity.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Sponer, G., et al.: J. Cardiovasc. Pharmacol., 9, 317 (1987), Fujimaki, M., ET AL.: Xenobiotica, 20, 1025 (1990), Ruffolo, R., et al.: Eur. J. Clin. Pharmacol., 38, S82 (1990), Schaefer, W.H., et al.: Drug Metab. Dispos., 26, 10, 958 (1998),

Rac-Diacetolol is a racemic mixture of two isomers, (+) and (-), of acebutolol. Rac-Diacetolol is used to treat bowel disease, chronic oral inflammation and cardiac arrhythmias. It is also used as an experimental solubility probe in the study of the interactions between drugs and biological membranes. Rac-Diacetolol has been shown to have a low affinity for cytochrome P450 enzymes, which are responsible for metabolizing many drugs in the body. Rac-Diacetolol has been found to reduce plasma concentrations of PCSK9 antibody in patients with inflammatory bowel disease. The drug also has anti-inflammatory properties that may be due to its inhibition of prostaglandin synthesis.

Applications 3-Hydroxy-4-(1-naphthyloxy)-butanenitrile is an intermediate in the synthesis of Nadoxolol (N201040), which is a beta-adrenergic receptor blocker.
References Kappor, M., et al.: Bioorg. Chem., 31, 259 (2003)