134678-59-4 2,4,6,10,14-Hexadecapentaenoic acid, 7-(hydroxymethyl)-3,11,15-trimethyl-, (all-E)- 7-Hydroxyacyclic retinoid 7-Hydroxymethyl-3,11,15-trimethyl-2,4,6,10,14-hexadecapentaenoic acid