15,16-Dihydro-11-butoxy-17H-cyclopenta(a)phenanthren-17-one 15,16-Dihydro-11-n-butoxycyclopenta(a)phenanthren-17-one 17H-Cyclopenta(a)phenanthren-17-one, 15,16-dihydro-11-butoxy- 83053-60-5 CCRIS 7139