Dehydro Epiandrosterone(DHEA) CAS: 53-43-0 Molecular formula: C19H28O2 Molecular weight: 288.40 Properties: white to almost white crystalline powder Melting point: between 149℃ and 151 Optical Rotary: between +12?nd +15? Loss on drying: not more than 0.5% Assay: not less than 99.0% Residue on Ignition: not more than 0.1%