5alpha 6alpha 7 8 didehydro 4 5 epoxy 17 methylmorphinan 3 6 diol diacetate ester, 3 6 diacetylmorphine, 7 8 dihydro 4 5 alpha epoxy 17 methylmorphinan 3 6 alpha diol diacetate
Used in the treatment of acute pain, myocardial infarction, acute pulmonary oedema, and chronic pain.