11-Dehydro-2,3-dinor-thromboxane B2 11-Dehydro-2,3-dinor-txb2 148682-73-9 3-Pentenoic acid, 5-(tetrahydro-4-hydroxy-2-(3-hydroxy-1-octenyl)-2H-pyran-3-yl)-, (2R-(2alpha(1E,3S*),3beta(Z),4beta))-