Prostaglandin D2. 11-Dehydroprostaglandin F2 alpha . 11 Dehydroprostaglandin F2 alpha . 11 Dehydroprostaglandin F2alpha . D2, Prostaglandin . F2 alpha, 11-Dehydroprostaglandin . F2alpha, 11-Dehydroprostaglandin . alpha, 11-Dehydroprostaglandin F2 . 11-Dehydroprostaglandin F2alpha . PGD2 13352 . The principal cyclooxygenase metabolite of arachidonic acid. It is released upon activation of mast cells and is also synthesized by alveolar macrophages. Among its many biological actions, the most important are its bronchoconstrictor, platelet-activating-factor-inhibitory, and cytotoxic effects. . 0.62