1,4-Bis(14-hydroxydihydronorcodeinone)-2-butyne dihydrochloride 106301-69-3 Morphinan-6-one, 17,17'-(2-butynylene)bis(4,5-alpha-epoxy-14-hydroxy-3-methoxy-, dihydrochloride Norcodeinone, N,N'-2-butynylenebis(7,8-dihydro-14-hydroxy-, dihydrochloride