(15S)-15-Methyl-pgf2-alpha 1,15-lactone (15S)-15-Methyl-prostaglandin F2-alpha 1,15-lactone 62411-21-6 BRN 5597537 Prosta-5,13-dien-1-oic acid, 9,11,15-trihydroxy-15-methyl-, lambda-lactone, (5Z,9-alpha,11-alpha,13E,15S)