Title:  Encainide 
CAS Registry Number:  66778-36-7 
CAS Name:  4-Methoxy-N-[2-[2-(1-methyl-2-piperidinyl)ethyl]phenyl]benzamide 
Additional Names:  (±)-2¢-[2-(1-methyl-2-piperidyl)ethyl]-p-anisanilide;  4-methoxy-2¢-[2-(1-methyl-2-piperidyl)ethyl]benzanilide 
Molecular Formula:  C22H28N2O2 
Molecular Weight:  352.47 
Percent Composition:  C 74.97%, H 8.01%, N 7.95%, O 9.08% 
Literature References:  Anti-arrhythmic benzanilide derivative.  Prepn:  S. J. Dykstra, J. L. Minielli, DE 2210154 (1972 to Bristol-Myers), C.A. 78, 4138j (1973); eidem, US 3931195 (1976 to Mead Johnson); S. J. Dykstra et al., J. Med. Chem. 16, 1015 (1973).  Anti-arrhythmic pharmacology in animals:  J. E. Byrne et al., J. Pharmacol. Exp. Ther. 200, 147 (1977).  Clinical pharmacology and efficacy in chronic ventricular arrhythmia:  D. M. Roden et al., N. Engl. J. Med. 302, 877 (1980).  Electrophysiology and effects on cardiac conduction:  M. Sami et al., Am. J. Cardiol. 44, 526 (1979).  Hemodynamic effects:  M. Sami et al., ibid. 52, 507 (1983).  Adverse effects:  R. A. Winkle et al., Am. Heart J. 102, 857 (1981).  Comparison with other Class I anti-arrhythmic agents:  A. Pottage, Am. J. Cardiol. 52, 24C (1983).  Series of articles on pharmacology, pharmacokinetics, metabolism, clinical safety and efficacy:  ibid. 58(5), 1C-116C (1986).  Review:  L. B. Mitchell, R. A. Winkle in New Drugs Annual:  Cardiovascular Drugs vol. 1, A. Scriabine, Ed. (Raven Press, New York, 1983) pp 93-107. 
  
Derivative Type:  Hydrochloride  
CAS Registry Number:  66794-74-9 
Manufacturers' Codes:  MJ-9067 
Trademarks:  Enkaid (Mead Johnson) 
Molecular Formula:  C22H28N2O2.HCl 
Molecular Weight:  388.93 
Percent Composition:  C 67.94%, H 7.52%, N 7.20%, O 8.23%, Cl 9.12% 
Properties:  Crystals, mp 131.5-132.5°.  Freely sol in water; slightly sol in ethanol.  Insol in heptane.  LD50 in mice, dogs (mg/kg):  86, 43 orally; 16, 17 i.v. (Mitchell, Winkle). 
Toxicity data:  LD50 in mice, dogs (mg/kg):  86, 43 orally; 16, 17 i.v. (Mitchell, Winkle) 
  
Therap-Cat:  Antiarrhythmic (class IC). 
Keywords:  Antiarrhythmic.   |