英文别名4-PREGNEN-3,6,20-TRIONE; 6-keto group of progesterone; (8S,9S,10R,13S,14S,17S)-17-Acetyl-10,13-dimethyl-7,8,9,11,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthrene-3,6(2H,10H)-dione; 6-KETOPROGESTERONE; Pregn-4-ene-3,6,20-triene; Progesterone Impurity 28 (6-Oxo-Progesterone); pregna-4-ene-3,6,20-trione; pregn-4-en-3,6,20-trione; Progesterone Impurity 15 
