| Title:  Fenquizone CAS Registry Number:  20287-37-0 CAS Name:  7-Chloro-1,2,3,4-tetrahydro-4-oxo-2-phenyl-6-quinazolinesulfonamide Additional Names:  7-chloro-2-phenyl-6-sulfamyl-1,2,3,4-tetrahydro-4-quinazolinone Manufacturers' Codes:  MG-13054 Molecular Formula:  C14H12ClN3O3S Molecular Weight:  337.78 Percent Composition:  C 49.78%, H 3.58%, Cl 10.50%, N 12.44%, O 14.21%, S 9.49% Literature References:  Thiazide-like diuretic with saluretic and hypocalciuric activity.  Prepn:  M. G. Biressi et al., Farmaco Ed. Sci. 24, 199 (1969).  Prepn of potassium salt:  M. Carissimi, F. Ravenna, BE 799087 (1973 to Maggioni); eidem, US 3870720 (1975).  Gas-liquid chromatography:  A. Marzo et al., J. Chromatogr. 272, 95 (1983).  Metabolism in dogs:  D. Ceriani et al., Farmaco Ed. Sci. 31, 379 (1976).  Human pharmacokinetics:  G. C. Maggi et al., Arzneim.-Forsch. 35, 994 (1985).  Site of action:  C. Ferrando et al., J. Pharm. Pharmacol. 33, 219 (1981).  Clinical trials:  O. Biadi et al., Drugs Exp. Clin. Res. 7, 763 (1981); N. Glorioso et al., Curr. Ther. Res. 35, 483 (1984); A. Cupisti et al., ibid. 38, 293 (1985). Properties:  mp >310°.  Insol in water. Melting point:  mp >310°   Derivative Type:  Monopotassium salt  CAS Registry Number:  52246-40-9 Trademarks:  Idrolone (Maggioni) Molecular Formula:  C14H12ClKN3O3S Molecular Weight:  376.88 Percent Composition:  C 44.62%, H 3.21%, Cl 9.41%, K 10.37%, N 11.15%, O 12.74%, S 8.51% Properties:  White crystalline powder.  Sol in water.  pH ~9.9 (1% aqueous soln).   Therap-Cat:  Diuretic. Keywords:  Antihypertensive; Thiazides and Analogs; Diuretic; Thiazides and Analogs.  |