1515-methyl prostaglandin f2a isopropyl ester

15(S)-15-methyl Prostaglandin F2α (15(S)-15-methyl PGF2α) has been shown to have potent uterine stimulant and abortifacient properties when administered intramuscularly to induce labor. 15(S)-15-methyl PGF2α isopropyl ester is a lipophilic analog of 15(S)-15-methyl PGF2α methyl ester, which may be hydrolyzed in vivo to the fully active free acid.