Original Plant: Rheum palmatum L
Specification: 10-50%
Test Method: HPLC
MolecularFormula: C15H10O5
Molecular Weight: 270.23.
CAS No.: 518-82-1
Solubility: Insoluble in water Dissolve in alkali and pyridine, slightly dissolve in ethanol, benzene, chloroform, ether and petroleum ether.