Pregnenlone CAS: 630-56-8 Molecular formula: C21H32O2 Molecular weight: 316.49 Properties: white to almost white crystalline powder Melting point: between 185℃ and 193℃ Optical Rotary: between +27?nd +30? Loss on drying: not more than 0.5% Assay: not less than 99.0%