17 Alpha Hydroxyprogesterone Chemical name: 17-alpha-hydroxypregn-4-ene-3,20-dione Molecular formula: C21H30O3 Molecular weight: 330.47 CAS-NR.: 68-96-2 Aussehen: White or almost white crystalline powder Assay: ≥99.0% Melting point: ≥214°C