英文别名Acitretin Impurity 19; (2E,4E,6Z,8E)-9-(4-Methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-2,4,6,8-nonatetraenoic Acid; Acitretin ImpuritⅡ:9-cis Acitretin; 2,4,6,8-Nonatetraenoic acid, 9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-, (2E,4E,6Z,8E)-; Acitretin Impurity 9 (9-cis-Acitretin) 
