Amiodarone
Title: Amiodarone
CAS Registry Number: 1951-25-3
CAS Name: (2-Butyl-3-benzofuranyl)[4-[2-(diethylamino)ethoxy]-3,5-diiodophenyl]methanone
Additional Names: 2-butyl-3-benzofuranyl-4-[2-(diethylamino)ethoxy]-3,5-diiodophenyl ketone; 2-butyl-3-[3,5-diiodo-4-(b-diethylaminoethoxy)benzoyl]benzofuran
Molecular Formula: C25H29I2NO3
Molecular Weight: 645.31
Percent Composition: C 46.53%, H 4.53%, I 39.33%, N 2.17%, O 7.44%
Literature References: Benzofuran derivative with multiple electrophysiological effects. Prepn: FR 1339389; R. Tondeur, F. Binon, US 3248401 (1963, 1966 to Soc. Belge l'Azote Prod. Chim. Marly). Physicochemical properties: M. Bonati et al., J. Pharm. Sci. 73, 829 (1984). HPLC determn in plasma: M. De Smet, D. L. Massart, J. Pharm. Biomed. Anal. 6, 277 (1988). Comprehensive description: T. A. Plomp, Anal. Profiles Drug Subs. 20, 1-120 (1991). Review of pharmacology, clinical efficacy and safety: M. Chow, Ann. Pharmacother. 30, 637-643 (1996); B. N. Singh, Clin. Cardiol. 20, 608-618 (1997). Clinical trial in cardiac resuscitation: P. J. Kudenchuk et al., N. Engl. J. Med. 341, 871 (1999); to prevent atrial fibrillation: D. Roy et al., ibid. 342, 913 (2000).
 
Derivative Type: Hydrochloride
CAS Registry Number: 19774-82-4
Manufacturers' Codes: L-3428
Trademarks: Amiodar (Sanofi Winthrop); Ancaron (Taisho); Cordarex (Sanofi Winthrop); Cordarone (Wyeth); Ortacrone (Sanofi Winthrop); Pacerone (Upsher-Smith); Tachydaron (AWD); Trangorex (Sanofi Winthrop)
Molecular Formula: C25H29I2NO3.HCl
Molecular Weight: 681.77
Percent Composition: C 44.04%, H 4.44%, I 37.23%, N 2.05%, O 7.04%, Cl 5.20%
Properties: Crystalline powder, mp 156°. Also reported as crystals from acetone, mp 159 ±2° (Bonati). Soly at 25° (g/100ml): chloroform 44.51; methylene chloride 19.20; methanol 9.98; ethanol 1.28; benzene 0.65; tetrahydrofuran 0.60; acetonitrile 0.32; 1-octanol 0.30; ether 0.17; 1-propanol 0.13; water 0.07; hexane 0.03 petroleum ether 0.001. Sparingly sol in isopropanol; slightly sol in acetone, dioxane, and carbon tetrachloride. pH (5% soln) 3.4-3.9. pKa (25°C) 6.56 ±0.06. uv max (methanol): 208, 242 nm (E1%1cm 662 ±8, 623 ±10).
Melting point: mp 156°; mp 159 ±2° (Bonati)
pKa: pKa (25°C) 6.56 ±0.06
Absorption maximum: uv max (methanol): 208, 242 nm (E1%1cm 662 ±8, 623 ±10)
 
Therap-Cat: Antiarrhythmic (class III).
Keywords: Antiarrhythmic.

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