68324-95-8 D17-6KPGF1A Prosta-13,17-dien-1-oic acid, 9,11,15-trihydroxy-6-oxo-, (9alpha,11alpha,13E,15S,17Z)- delta(17)-6-Keto-pgf1alpha delta(17)-6-Ketoprostaglandin F1alpha