A stable crystal of a salt of N—[(R)-1-(S)-2-hydroxy-2-phenylpropylamino}propan-2-yl]isoquinoline-6-sulfonamide may have desirable properties for a pharmaceutical drug substance, and more specifically N—[(R)-1-(S)-2-hydroxy-2-phenylpropylamino}propan-2-yl]isoquinoline-6-sulfonamide dihydrochloride anhydride. A crystal of the anhydride may have characteristic peaks at 2θ angles of 6.8±0.1°, 10.0±0.1°, 12.7±0.1°, 14.6±0.1°, 14.8±0.1°, 16.2±0.1°, 17.4±0.1°, 17.8±0.1°, 19.5±0.1°, 20.0±0.1°, 21.6±0.1°, 24.7±0.1°, 25.5±0.1°, 25.8±0.1°, 29.8±0.1°, 39.5±0.1°, and/or 44.9±0.1° in powder X-ray diffraction spectrum.
N-[(R)-1-(S)-2-羟基-2-苯基丙
氨基}丙-2-基]
异喹啉-6-磺酰胺盐的稳定晶体可能具有理想的药物特性,更具体地说,N-[(R)-1-(S)-2-羟基-2-苯基丙
氨基}丙-2-基]
异喹啉-6-磺酰胺二盐酸盐酸酐可能具有理想的药物特性。该酸酐的晶体可在 2θ 角处出现特征峰,分别为 6.8±0.1°、10.0±0.1°、12.7±0.1°、14.6±0.1°、14.8±0.1°、16.2±0.1°、17.4±0.1°、17.8±0.1°, 19.5±0.1°, 20.0±0.1°, 21.6±0.1°, 24.7±0.1°, 25.5±0.1°, 25.8±0.1°, 29.8±0.1°, 39.5±0.1°, 和/或 44.9±0.1°。