Chemical Name:17,17'-Di(cyclopropylmethyl)-4,5a;4',5a'-diepoxy-7a,7a'-di[(1S)-1-hydroxy-1,2,2-trimethylpropyl]-6,6'-dimethoxy-2,2'-bi(6a,14-ethano-14a-morphinan)-3,3'-diol (as per EP) ; 2,2'-Bi{17-(cyclopropylmethyl)-4,5a-epoxy-3-hydroxy-7a-[(S)-2-hydroxy-3,3-dimethylbutan-2-yl]-6-methoxy-6a,14-ethanomorphinan} (as per USP)
