Isomitraphylline and pteropodine are the most suitable for standardization of medical cat's claw preparations. Isomitraphylline can inhibit proliferation of acute lymphoblastic leukaemia cells.

4963-01-3

C21H24N2O4

368.43

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years