Abemaciclib mesylate

Appearance: Off white to pale yellow powder
Regarding substances: The maximum single impurity shall not exceed 0.1%; The total magazine shall not exceed 1.0%;
Palladium residue: not exceeding 10ppm;
Dry weight loss: not exceeding 1.0%;
Burning residue: not exceeding 0.5%;
Heavy metals: not exceeding 20ppm;
Methanesulfonic acid content: 12.5~15.5%;
Content: not less than 99.0%.