(6-alpha)-6-Methylpregn-4-ene-3,20-dione (6alpha)-6-Methylpregn-4-ene-3,20-dione 6-alpha-Methylpregn-3-ene-3,20-dione 6-alpha-Methylprogesterone 6alpha-Methylprogesterone 903-71-9 NSC 75530 Pregn-4-ene-3,20-dione, 6-alpha-methyl- Pregn-4-ene-3,20-dione, 6-methyl-, (6-alpha)- (9CI) Pregn-4-ene-3,20-dione, 6-methyl-, (6alpha)- (9CI) Pregn-4-ene-3,20-dione, 6alpha-methyl- (8CI)