| CPC C07D 219/10 (2013.01) [A61P 25/28 (2018.01); C07B 2200/13 (2013.01)] | 20 Claims |
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1. A crystal form of octahydroaminoacridine succinate, wherein said crystal form is any one of the following crystal forms:
Crystal Form A, characterized by main characteristic X-ray powder diffraction peaks at the corresponding positions of 2θ values of 8.8°±0.2°, 16.4°±0.2°, 23.2°±0.2°;
Crystal Form C, characterized by main characteristic X-ray powder diffraction peaks at the corresponding positions of 2θ values of 8.0°±0.2°, 24.1°±0.2°, 21.7°±0.2°;
Crystal Form F, characterized by main characteristic X-ray powder diffraction peaks at the corresponding positions of 2θ values of 21.3°±0.2°, 7.1°±0.2°, 26.3°±0.2°.
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