英文别名:RETINOIC ACID, 9-CIS-;RARECHEM AL BE 0738;(2E,4E,6Z,8E)-3,7-DIMETHYL-9-(2,6,6-TRIMETHYLCYCLOHEX-1-ENYL)NONA-2,4,6,8-TETRAENOIC ACID;9-CIS-RETINOIC ACID;9-CIS-TRETINOIN;Tretinoin EP Impurity D;(2E,4E,6Z,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohex;Isotretinoin Impurity 4(Isotretinoin EP Impurity D)