(R)-9,10-Dihydro-9-(dimethylamino)-8-ethyl-3,4-phenanthrenediol 1-Ethyl-5,6-dihydroxy-10-dimethylamino-9,10-dihydrophenanthrene hydrobromide 3,4-Phenanthrenediol, 9,10-dihydro-9-(dimethylamino)-8-ethyl-, hydrobromide, (R)- 41958-83-2