Dimethyl Cantharidin Molecular formula: c8h8o4 Molecular weight: 168.15 cas :5442-12-6 Melting point: 113 íµ -115 íµ Chemical name :7-oxabicyclo (2, 2, 1) heptane-2 , 3-dicarboxylic anhydride Properties: white crystalline powder, aqueous solution acidic reaction, soluble in hot water or acetone, slightly soluble in cold water or ethanol. Loss on drying: 0.03% Residue on ignition: 0.1% Content: 100.4% Pharmacological effects: this product is a white crystalline powder; no foul. Irritant; aqueous acidic reaction. Antineoplastic agents. For the liver, stomach and cardia cancer, and low white blood cell disorders. Demehylcantharidin Molecular formula: c8h8o4 Molecular weight: 168.15 cas :5442-12-6 Melting point: 113 íµ -115 íµ Chemical name :7-oxabicyclo (2, 2, 1) heptane-2 , 3-dicarboxylic anhydride Properties: white crystalline powder, aqueous solution acidic reaction, soluble in hot water or acetone, slightly soluble in cold water or ethanol. Loss on drying: 0.03% Residue on ignition: 0.1% Content: 100.4% Pharmacological effects: this product is a white crystalline powder; no foul. Irritant; aqueous acidic reaction. Antineoplastic agents. For the liver, stomach and cardia cancer, and low white blood cell disorders.