42408-82-2 EINECS 255-808-8 Morphinan-3,14-diol, 17-(cyclobutylmethyl)- l-BC 2627 Butorphanol C06863 D03197 Butorphanol (USAN) (-)-17-(Cyclobutylmethyl)morphinan-3,14-diol 17-(CYCLOBUTYLMETHYL)MORPHINAN-3,14-DIOL Butorfanol Butorfanol [INN-Spanish] Butorphanol [USAN:BAN:INN] Butorphanolum [INN-Latin]