2-21-00-00167 (Beilstein Handbook Reference) 5,6,8,14-Tetradehydro-3,6-dimethoxy-17-methylmorphinan-4-ol 6878-93-9 BRN 0102244 Dihydrothebaine PHI Morphinan-4-ol, 5,6,8,14-tetradehydro-3,6-dimethoxy-17-methyl- Phi-dihydrothebaine