Emodin Details Product Name: Emodin Herb Source: Rheum palmatum L． Part Used: Root Specification: 20%-98% Test Method: HPLC Appearance: Brown powder CAS#: 518-82-1 Molecular Formula & Molecular Weight: C15H8O6; 284.21Structural Formula: Melting Point & Solubility: mp 321-322℃, Solubility: insoluble in water, soluble in pyridine, sodium bicarbonate solution, slightly soluble in ethanol, benzene, ammonia imitation, ether and petroleum ether. Pharmacology: 1. …