Imp. C (EP);Dimethyl pseudomorphine;Cimetidine amide dihydrochloride (free base); 

(2,2'-Bimorphinan)-3,3',6,6'-tetrol, 7,7',8,8'-tetradehydro-4,5:4',5'-diepoxy-17,17'-dimethyl-, (5alpha,6alpha)-(5'alpha,6'alpha)-;Pseudomorpine;Pseudomorphine (Morphine Impurity);4,5α:4',5'α-Bisoxy-17,17'-dimethyl[2,2'-bi(7,8-didehydromorphinan)]-3,3',6α,6'α-tetrol;pseudomorphine (morphine impurity);