<unk> , also known as 17α-methyl-δ9-19-norprogesterone or as 17α-methyl-19-norpregna-4,9-diene-3,20-dione, is a synthetic norpregnane steroid and a derivative of progesterone. It is specifically a combined derivative of 17α-methylprogesterone and 19-norprogesterone, or of 17α-methyl-19-norprogesterone. Related derivatives of 17α-methyl-19-norprogesterone include promegestone and trimegestone.
Demegestone
Trimegestone
Trengestone
Diatragacanth
Prayer callus
Cradle cap
Oak wilt
Facies 