50-28-2
雌二醇
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3571-53-7
十一酸雌二醇
1263-57-6
[(8R,9S,13S,14S,17S)-13-methyl-3-undecanoyloxy-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl] undecanoate