(5Z,9alpha,13E,15S,17Z)-9,15-Dihydroxy-11-oxothromboxa-5,13,17-trien-1-oic acid 11-Dehydro-txb(3) 11-Dehydrothromboxane B3 129228-55-3 Thromboxa-5,13,17-trien-1-oic acid, 9,15-dihydroxy-11-oxo-, (5Z,9alpha,13E,15S,17Z)-