Synonyms6,7,8,14-tetradehydro-4,5α-epoxy-6-methoxy-17-methylmorphinan-3-ol (as per EP); Oripavine (EP) Close 6,7,8,14-tetradehydro-4,5α-epoxy-6-methoxy-17-methylmorphinan-3-ol (as per EP); Oripavine (EP) Related products Dihydro Normorphine M.F. - M.W. - CAT# AR-M03237 CAS# 1421-13-2 10-Oxo Morphine M.F. M.W. 299.32 CAT# AR-M03345 CAS# 68254-48-8 Morphine EP Impurity C (Codeine EP Impurity L) M.F. M.W. 297.4 CAT# AR-M03381 CAS# 467-04-9