2,4,6,8-Nonatetraenoic acid, 9-(2-(1-methoxyethyl)-5,5-dimethyl-1-cyclopenten-1-yl)-3,7-dimethyl-, (all-E)- 50890-38-5 BRN 2885964 Ro 10-1770 Ro 1770 all-trans-9-(2-(1-Methoxyethyl)-5,5-dimethyl-1-cyclopenten-1-yl)-3,7-dimethyl-2,4,6,8-nonatetraenoic acid