Patent ID: 8362263
Filing Date: 2013-01-29
Classification: A61P,C07D

Abstract:
1. Crystalline S-(−)-amlodipine adipic acid salt anhydrous, represented by the following Chemical Formula 1: wherein the crystalline S-(−)-amlodipine adipic acid salt anhydrous has X-ray diffraction peaks at diffraction angles of 9.6°, 11.0°, 13.54°, 14.52°, 14.58°, 15.30°, 17.48°, 17.92°, 17.98°, 18.02°, 19.34°, 21.14°, 22.14°, 23.20°, 24.26°, 25.32°, 26.60°, 27.14°, 27.26°, 28.26°, 28.62°, 30.62°, 31.96°, 32.02°, 33.06°, 35.36°, 35.98°, 36.04°, 37.42°, and 44.68°, with a melting point ranging from 134 to 136° C.