1,4-Benzenedicarboxylic acid, compd. with (5alpha)-4,5-epoxy-14-hydroxy-3-methoxy-17-methylmorphinan-6-one 64336-55-6 Morphinan-6-one, 4,5-epoxy-14-hydroxy-3-methoxy-17-methyl-, (5alpha)-, 1,4-benzenedicarboxylate (salt)