For Drosperinone, CAS 82543-16-6, Ability:500kg/month product name: 3β,5-dihydroxy-6β,7β;15β,16β-dimethylene-5β-androstan-17-one ITEMSSPECIFICATIONAppearance White or almost white crystalline powderHeavy metals≤20ppmResidue on ignition≤0.1%Loss on drying≤0.5%Assay≥98.0% fine chemical Drosperinone Intermediate Q5