Alpha blockers

Applications An impurity in the synthesis of Silodosin (S465000), an α1a-adrenoceptor antagonist. It is used in treatment of benign prostatic hypertophy.
References Barve, I. et al.: Tetra., 69, 2834 (2013); Shibata, K., et al.: Mol. Pharmacol., 48, 250 (1995), Murata, S., et al.: J. Urol., 164, 578 (2000),

Applications A vascularly inactive metabolite of Carvedilol (C184625). A novel antihypertensive agent, is a potent antioxidant.
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), Rapola, J., et al.: Lancet, 349, 1715 (1997), Gao, F., et al.: Eur. J. Pharmacol., 406, 109 (2000),

Applications A metabolite of Mirtazapine (M365000). This compounds contains some of the alpha anomer.
References Sandker, G., et al.: Xenobiotica, 24, 143 (1994), Dahl, M., et al.: Clin. Drug Invest., 13, 37 (1997),

Impurity Carvedilol EP Impurity E; Carvedilol Impurity E; Carvedilol USP E
Applications 2-(2-Methoxyphenoxy)ethylamine Hydrochloride (Carvedilol EP Impurity E; Carvedilol Impurity E; Carvedilol USP E) is an impurity of Carvedilol synthesis.
References Smith, L., et al.: J. Med. Chem., 20, 1653 (1977),

Applications Piperazine derivative used as reference materials for forensic laboratories. They affect the central and the autonomic nervous systems, the blood pressure, and smooth muscle.
References Brady, J., et al.: Drug Dev. Res., 20, 231 (1990), Winter, J., et al.: J. Pharmacol. Exp. Ther., 262, 682 (1992), Ator, N., et al.: Eur. J. Pharmacol., 241, 237 (1993), Forster, E., et al.: Eur. J. Pharmacol., 281, 81 (1995),

Applications Carvedilol-d5 is the labelled analog of Carvedilol, a nonselective β-adrenergic blocker with α1-blocking activity. Carvedilol is an antihypertensive used in the treatment of congestive heart failure.
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 Hirohashi, M., et al.: Arzneim.-Forsch., 40, 735 (1990), Packer, M., et al.: N. Engl. J. Med., 334, 1349 (1996),

Applications Silodosin is an α1a-adrenoceptor antagonist. It is used in treatment of benign prostatic hypertrophy.
References (1) Shibata, K., et al.: Mol. Pharmacol., 48, 250 (1995) (2) Murata, S., et al.: J. Urol., 164, 578 (2000)

Stability Hygroscopic
Applications The optically active isomer of Carvedilol (C184625), a nonselective ß-adrenergic blocker with a1-blocking activity. An antihypertensive used in the treatment of congestive heart failure.
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 Hirohashi, M., et al.: Arzneim.-Forsch., 40, 735 (1990),

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),

Applications Tamsulosin is a specific α1-adrenoceptor antagonist. Used in the treatment of benign prostatic hypertrophy.
References Kawabe, K., et al.: J. Urol., 144, 908 (1990), Abrams, P., et al.: Br. J. Urol., 76, 325 (1995), Michel, M.C., Expert Opin. Pharmacother., 5, 151 (2004),

Applications Methyl 1,4-Benzodioxan-2-carboxylate is an intermediate used to prepare 2,3-dihydrobenzo[b|[1,4|dioxin- and indolealkylamine derivatives as potential antidepressants.
References Wang, S., et al.: Archiv der Pharmazie (Weinheim, Germany), 347, 32 (2014); Wang, S., et al.: Bioorg. Med. Chem. Lettt., 24, 1766 (2014)

Impurity Mirtazapine EP Impurity C; Mirtazapine USP Related Compound C
Applications 1-Oxo Mirtazapine (Mirtazapine Impurity C; Mirtazapine USP Related Compound C) is an impurity of Mirtazapine. Mirtazapine EP Impurity C.
References De Boer, T., et al.: Neuropharmacol., 27, 399 (1988), Vindevogel, J., et al.: Anal. Chem., 63, 1530 (1991), Wynia, G., et al.: J. Chromatogr., 773, 339 (1997),

Impurity Mirtazapine
Applications A labelled metabolite of Mirtazapine, α2-adrenergic blocker.
References De Boer, T., et al.: Neuropharmacology, 27, 399 (1988), Smith, W.T., et al.: Psychopharmacol. Bull., 26, 191 (1990)

Applications Mirtazapine N-Glucuronide is a metabolite of Mirtazapine (M365000), an α2-Adrenergic blocker; analogue of Mianserin. Antidepressant.
References Smith, D.A., RSC Drug Discovery Series, 1, 193 (2010); De Boer, T., et al.: Neuropharmacology, 27, 399 (1988); Smith, W.T., et al.: Psychopharmacol. Bull., 26, 191 (1990)

Applications N-Formyl Cardevilol is an impurity of Carvedilol (C184625).
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications 2-(4-Methyl-2-phenyl-1-piperazinyl)-3-pyridinemethanol is an impurity found in Mirtazapine (M365000). Mirtazapine Impurity B.

Applications 2-Phenylphenol is an agricultural fungicide and is no longer used as a food additive (1). It has been associated with the incidence of bladder cancer in male rats which may be related to its primary metabolite, phenylhydroquinone (2). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA). Environmental contaminants; Food contaminants.
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 1. Gouin T. et al.: Environ Pollut. 2012 Jun;165:208-14. 2. Balakrishnan, S. et al.: Environ Mol Mutagen. 2016 Apr;57(3):210-9

Impurity Carvedilol EP Impurity B; Carvedilol Impurity B; Carvedilol USP B
Applications Carvedilol Bis-carbazole (Carvedilol EP Impurity B; Carvedilol Impurity B; Carvedilol USP B) is an impurity from the process of Carvedilol (C184625).

Applications A metabolite of Carvedilol (C184625), a nonselective β-adrenergic blocker with α1-blocking activity.
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), Clohs, L., et al.: J. Pharm. Biomed. Anal., 31, 407 (2003),

Applications An α2-Adrenergic blocker; analogue of Mianserin. Antidepressant.
References De Boer, T., et al.: Neuropharmacology, 27, 399 (1988), Smith, W.T., et al.: Psychopharmacol. Bull., 26, 191 (1990)

Applications A carvedilol Impurity.

Impurity Carvedilol Impurity A; Carvedilol USP A
Applications An impurity from the process of Carvedilol (C184625). Carvedilol impurity A. Carvedilol USP A.

Impurity Carvedilol EP Impurity D; Carvedilol USP-D
Applications 4-(2,3-Epoxypropoxy)carbazole (Carvedilol EP Impurity D; Carvedilol USP-D) is an intermediate in the synthesis of Carvedilol (C184625).

Applications 3-(9H-Carbazol-4-yloxy)-1,2-propanediol is used in the synthesis of carvedilol, a β-adrenergic blocking agent.
References Naidu, K. et al.: Org. Chem. An Indian J., 6, 171 (2010);

Applications Carvedilol is a nonselective β-adrenergic blocker with α1-blocking activity. Carvedilol is an antihypertensive used in the treatment of congestive heart failure.
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 Hirohashi, M., et al.: Arzneim.-Forsch., 40, 735 (1990); Packer, M., et al.: N. Engl. J. Med., 334, 1349 (1996);

Applications Mirtazapine (M365000) impurity.
References Reddy, T. et al.; J. Liq. Chromatogr. R. T. 31, 1204 (2008)

Impurity Trazodone Deschloro Impurity
Stability Hygroscopic
Applications A Trazodone (T718500) impurity. An antipsychotic with potential use as a schizophrenia agent. Trazodone impurity B.
References Pai, N. et al.: J. Chem Pharmaceut. Res., 2, 458 (2010); Silvestrini, B., et al.: Eur. J. Pharmacol., 12, 231 (1970); Brogden, R.N., et al.: Drugs, 21, 401 (1981);

Stability Hygroscopic
Applications Semicarbazide Hydrochloride is a metabolite of Nitrofuran (N493840), a minor antimicrobial used in veterinary medicine affecting semicarbazide-sensitive amine oxidase (SSAO) activity (1). Semicarbazide may be found in from nitrofuran residues in honey extracts (2) as well as milk from dairy cows (3). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.Environmental contaminants; Food contaminants; Heat processing contaminants.
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 1. Elliott J. et al.: J Pharm Pharmacol. 1989 Jan;41(1):37-41. 2. Tribalat L. et al.: Anal Bioanal Chem. 2006 Dec;386(7-8):2161-8. 3. Chu, P. et al.: J. Agric. Food Chem. 2007 Feb:55(6);2129-2135

Applications N,N-Diethylcyanoacetamide (cas# 26391-06-0) is a compound useful in organic synthesis.

Impurity Mirtazapine EP Impurity F
Applications 10-Oxo Mirtazapine (Mirtazapine Impurity F) is an impurity of Mirtazapine. Mirtazapine EP Impurity F.
References De Boer, T., et al.: Neuropharmacol., 27, 399 (1988), Vindevogel, J., et al.: Anal. Chem., 63, 1530 (1991), Wynia, G., et al.: J. Chromatogr., 773, 339 (1997),

Applications Carvedilol (C184625) derivative.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications 1-​[3-​(Dimethylamino)​propyl]​-​3-​ethylurea is a reagent used in the preparation of water soluble, multifunctional antibody-porphyrin gold nanoparticles.
References Penon, O. et al.: J. Colloid. Inter. Sci., 496, 100 (2017);

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),

Impurity Alfuzosin Hydrochloride EP Impurity E
Applications Alfuzosin (A532000) impurity. Alfuzosin (A532000) is an α1-Adrenoceptor antagonist structurally similar to Prozosin. Antihypertensive. Used in treatment of benign prostatic hypertrophy. (Alfuzosin Hydrochloride EP Impurity E )
References Ramage, A.G., et al.: Eur. J. Pharmacol., 129, 307 (1986), Deering, A.H.,: Brit. J. Clin. Pharmacol., 25, 417 (1988), Priolo, L.D., et al.: Eur. J. Clin. Pharmacol., 35, 25 (1988),

Applications Dehydro Silodosin is an impurity of Silodosin (S465000).
References Moriyama., et al.: Eur. J. Pharmacol., 331, 39 (1997), Zhu, J., et al.: Br. J. Pharmacol., 131, 546 (2000),

Applications (R)-Tamsulosin is a specific α1-adrenoceptor antagonist. It is used in the treatment of benign prostatic hypertrophy.
References Kawabe, K., et al.: J. Urol., 144, 908 (1990), Abrams, P., et al.: Br. J. Urol., 76, 325 (1995), Michel, M.C., Expert Opin. Pharmacother., 5, 151 (2004),

Applications 2-(2-Aminoethoxy)anisole is used as an additive to vinylphosphonic acid esters and acrylonitrile forming compounds displaying hypotensive activity. An impurity from the process of Carvedilol (C184625)
References Reznik, V. et al.: Russ. Chem. Bull., 48, 979, (1999); Hirohashi, M., et al.: Arzneim.-Forsch., 40, 735 (1990), Packer, M., et al.: N. Engl. J. Med., 334, 1349 (1996),

Applications A metabolite of Carvedilol (C184625). It is used in the treatment of hypertension.
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),

Applications 2-[2-(2,2,2-Trifluoroethoxy)phenoxy]ethyl Methanesulfonate is an intermediate of Silodosin (S465000) which is an α1a-adrenoceptor antagonist and used in the treatment of benign prostatic hypertophy.
References Francesco, C., et al.: Eur. J. Org. Chem., 27, 6011 (2015)

Impurity Tamsulosin EP Impurity A
Applications N-[2-(2-Ethoxyphenoxy)ethyl]-(R)-Tamsulosin (Tamsulosin EP Impurity A) is derived from 5-[(2R)-2-Aminopropyl]-2-methoxybenzenesulfonamide (A628695), which is a precursor in the synthesis of Tamsulosin (T006350) and other alpha-andregenic antagonists. (R)-Tamsulosin is a specific α1-adrenoceptor antagonist. It is used in the treatment of benign prostatic hypertrophy.
References Kawabe, K., et al.: J. Urol., 144, 908 (1990), Abrams, P., et al.: Br. J. Urol., 76, 325 (1995), Michel, M.C., Expert Opin. Pharmacother., 5, 151 (2004),

Applications Mirtazapine-d4 is the labeled analogue of Mirtazapine (M365000), which is an α2-Adrenergic blocker, analogue of Mianserin, and antidepressant.
References De Boer, T., et al.: Neuropharmacology, 27, 399 (1988), Smith, W.T., et al.: Psychopharmacol. Bull., 26, 191 (1990);

Applications 4-Methyl-1-(3-methyl-2-pyridinyl)-2-phenylpiperazine is an impurity of Mirtazapine (M365000). Mirtazapine impurity E.
References De Boer, T., et al.: Neuropharmacology, 27, 399 (1988), Wynia, G., et al.: J. Chromatography, A 773, 339 (1997),

Applications A metabolite of Mirtazapine, α2-adrenergic blocker.
References De Boer, T., et al.: Neuropharmacology, 27, 399 (1988), Smith, W.T., et al.: Psychopharmacol. Bull., 26, 191 (1990)

Applications A labelled metabolite of Carvedilol (C184625). It is used in the treatment of hypertension.
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),

Stability Hygroscopic
Applications The optically active isomer of Carvedilol (C184625), a nonselective ß-adrenergic blocker with a1-blocking activity. An antihypertensive used in the treatment of congestive heart failure.
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 Hirohashi, M., et al.: Arzneim.-Forsch., 40, 735 (1990),

Applications 1-Bromo-3-chloropropane can be used safer and equally efficient alternative to chloroform as a phase-separation agent in the 1-step method of RNA isolation from biological samples such as animal and plant tissue.
References Chomczynski, P. et al.: Anal. Biochem., 225, 163 (1995); Chey, S. et al.: Anal. Biochem., 411, 164 (2011);

Applications Used in the preparation of Mirtazapine (M365000) impurities.

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),

Applications (R)-Tamsulosin-d4 Hydrochloride is the labeled analogue of (R)-Tamsulosin Hydrochloride (T006350), a specific α1-adrenoceptor antagonist. It is used in the treatment of benign prostatic hypertrophy.
References Kawabe, K., et al.: J. Urol., 144, 908 (1990); Abrams, P., et al.: Br. J. Urol., 76, 325 (1995); Michel, M.C., Expert Opin. Pharmacother., 5, 151 (2004)

Impurity Carvedilol EP Impurity C; Carvedilol Impurity C; Carvedilol USP C
Applications N-Benzyl Carvedilol (Carvedilol EP Impurity C) is an impurity of Carvedilol (C184625) and a degradation product in Carvedilol tablets.
References Karle, C., et al.: Cardiovasc. Res., 49, 361 (2001), Chen, J., et al.: Acta Cardiol. Sin., 19, 93 (2003), Xiang, T., et al.: Pharm. Res., 22, 1205 (2005),