11-Dehydro-13,14-dihydro-15-keto-thromboxane B2 13,14-Dihydro-dhk-txb2 79250-58-1 9-Hydroxy-11,15-dioxothrombox-5-en-1-oic acid (5Z,9alpha)- Thrombox-5-en-1-oic acid, 9-hydroxy-11,15-dioxo-, (5Z,9alpha)-