Inhibition of hatching of mouse blastocysts in vitro by various prostaglandin antagonists

Abstract
Summary. Hatching of mouse blastocysts in vitro is inhibited by 18,18,20-trimethyl PGE-2, 17,17-dimethyl PGE-2, 8,12-epiPGE-2 and N-dimethylamide PGF-2α, whose activity is between that of 7-oxa-13-prostynoic acid and meclofenamic acid.