1-Ethyl-1,2,3,4-tetrahydro-7-methoxy-2-methyl-2-phenanthrenecarboxylic acid 1-Ethyl-2-methyl-7-methoxy-1,2,3,4-tetrahydro-2-phenanthrenecarboxylic acid 2-Phenanthrenecarboxylic acid, 1-ethyl-1,2,3,4-tetrahydro-7-methoxy-2-methyl- 5684-13-9 RS 2874