Ipriflavone APPEARANCE White crystalline powder, insoluble In water and soluble in methanol Melting point 116-118°C Loss on drying 0.50% max Residue on ignition 0.10% max Heavy metals 10ppm max Assay 99.0% min Melting point 116-118°C Loss on drying 0.50% max Residue on ignition 0.10% max Heavy metals 10ppm max Assay 99.0% min