European Pharmacopoeia (EP) Reference Standard Synonym(s): (5 Z ,9α,11α,13 E ,15 S )-9,11,15-Trihydroxy-15- methylprosta-5,13-dien-1-oic acid with 2-amino-2-(hydroxymethyl)-1,3-propanediol (1:1); Carboprost tromethamine Empirical Formula: C25H47NO8 Formula...