(15S)-15-Methyl-pgf2-alpha 1,9-lactone (15S)-15-Methyl-prostaglandin F2-alpha 1,9-lactone 62411-08-9 BRN 5593339 Prosta-5,13-dien-1-oic acid, 15-methyl-9,11,15-trihydroxy-, theta-lactone, (5Z,9-alpha,11-alpha,13E,15S)