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Impurity Metoprolol EP Impurity D
Applications 3-[4-(2-Methoxyethyl)phenoxy]-1,2-propanediol (Metoprolol EP Impurity D) is a new byproduct detected in Metoprolol tartrate. Metoprolol (M338790) impurity.
References Erickson, M., et al.: J. Pharmac. Biomed. Anal., 13, 567 (1995),

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 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),

Applications It is the labeled analogue of Indocyanine Green (I697000), a tricarbocyanine type of dye with infrared absorbing properties that can be used as a diagnostic aid (blood volume determination, cardiac output, hepatic function).
References Papageorgiou, P., et al.: Br. J. Dermatol., 142, 973 (2000), Dreno, B., et al.: Dermatology, 203, 135 (2001), Gollnick, H., et al.: Drugs, 63, 1579 (2003), Seaton, E., et al.: Lancet, 362, 1347 (2003),

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 Perindoprilat is an angiotensin-converting enzyme (ACE) inhibitor and antihypertensive.
References Pascard, C., et al.: J. Med. Chem., 34, 663 (1991)

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.

Applications Protected Atorvastatin.

Applications Norepinephrine Sulfonic Acid is a derivative of DL-Norepinephrine Hydrochloride (N674500), antagonist of dibutyryl cyclic-AMP in the regulation of narcosis. Norepinephrine modulates human dendritic cell activation by altering cytokine release.
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 Piguet, P., et al.: J. Exp. Med., 173, 673 (1991), Hosoi, J., et al.: Nature, 363, 159 (1993), Elenkov, I., et al.: Pharmacol. Rev., 52, 595 (2000), Kaplan, D., et al.: Immunity, 23, 611 (2005),

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),

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);

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

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 Tirofiban intermediate.

Applications (R)-Betaxolol is the R-isomer of Betaxolol (B328000), a cardioselective β1-adrenergic blocker (1,2,3). It is also an antihypertensive and antiglaucoma agent (4).
References (1) Bickel, M., et al.: J. Pharm. Pharmacol., 32, 669 (1980)(2) Cadigan, P.J., et al.: Br. J. Clin. Pharmacol., 9, 569 (1980) (3) Pathe, M., et al.: Therapie, 37, 75 (1982)(4) Panchal, V. S., et al.: J. Pharm. Sci. Pharmacol. 2, 21 (2015)