has role is conjugate acid of retinoate retinoic acid 3,7-dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoic acid 300.43512 A retinoid consisting of 3,7-dimethylnona-2,4,6,8-tetraenoic acid substituted at position 9 by a 2,6,6-trimethylcyclohex-1-en-1-yl group (geometry of the four exocyclic double bonds is not specified). C20H28O2 CC(C=CC1=C(C)CCCC1(C)C)=CC=CC(C)=CC(O)=O CHEBI:26536 InChI=1S/C20H28O2/c1-15(8-6-9-16(2)14-19(21)22)11-12-18-17(3)10-7-13-20(18,4)5/h6,8-9,11-12,14H,7,10,13H2,1-5H3,(H,21,22) LINCS:LSM-2135 PMID:24506204 SHGAZHPCJJPHSC-UHFFFAOYSA-N chebi_ontology retinoid human metabolite alpha,beta-unsaturated monocarboxylic acid