64336-56-7 Morphinan-6-one, 4,5-epoxy-14-hydroxy-3-methoxy-17-methyl-, (5alpha)-, 1,4-benzenedicarboxylate (salt), mixt. with 2-(acetyloxy)benzoic acid, 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione, (5alpha)-4,5-epoxy-14-hydroxy-3-methoxy-17-methylmorphinan-6-one hydrochloride and N-(4-ethoxyphenyl)acetamide Percodan