Synonyms: 2,4,6,8-Nonatetraenoicacid, 9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-, ethyl ester, (all-E)-;Ethylall-trans-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-2,4,6,8-nonatetraenoate;Ethyl etrinoate;Etretinate;Ro 10-9359;Tegison;Tigason;Tigasone;