Norethisterone
CAS NO: 68-22-4
Molecular Formula: C20H26O2
Molecular Weight: 298.43
Content: 97.0％~102.0 ％
Melting point: 202~208dreg
Specific rotation: －22° to －28°
Loss on drying:  no more than 0.5% at  105dreg
Apperance: white or off-white crystalline powder, odorless, a little bitter taster
Packing: 1kg/foil bag
Quality Standard: BP2002/EP5
Storage: shading, confined preservation