11,15-Dihydroxy-16,16-dimethyl-9-methyleneprosta-5,13-dien-1-oic acid monopotassium salt, (5Z,11alpha,13E,15R)- 122576-55-0 Prosta-5,13-dien-1-oic acid, 11,15-dihydroxy-16,16-dimethyl-9-methylene-, monopotassium salt, (5Z,11alpha,13E,15R)-