sephadex lh-20 column chromatographic separation of extracts from these tissues showed that , in placental and molar tissue , 85 to 95 % of the extracts were progesterone and very small amounts of 20 alpha-dihydroprogesterone and 17 alpha-hydroxyprogesterone .
C0033308
progesterone
C0012311
20 alpha-dihydroprogesterone