1 2VR (2e,4e,6z,8e)-3,7-dimethyl-8-(8-methyl-3,4-dihydronaphthalen-1(2h)-ylidene)octa-2,4,6-trienoic acid 1.000 2 1O8 (2e,4e,6z,8e)-8-(3,4-dihydronaphthalen-1(2h)-ylidene)-3,7-dimethylocta-2,4,6-trienoic acid 0.957 3 29V (3e,6z,8e)-3,7-dimethyl-8-[(4s)-4-methyl-3,4-dihydronaphthalen-1(2h)-ylidene]octa-3,6-dienoic acid 0.917 4 2VP (2e,4e,6z,8e)-3,7-dimethyl-8-(7-methyl-3,4-dihydronaphthalen-1(2h)-ylidene)octa-2,4,6-trienoic acid 0.917 5 2VZ (2e,4e,6z,8e)-3,7-dimethyl-8-(6-methyl-3,4-dihydronaphthalen-1(2h)-ylidene)octa-2,4,6-trienoic acid 0.917 6 2W0 (2e,4e,6z,8e)-3,7-dimethyl-8-(5-methyl-3,4-dihydronaphthalen-1(2h)-ylidene)octa-2,4,6-trienoic acid 0.917 7 R4M (2e,6z,8e)-3,7-dimethyl-8-[(4r)-4-methyl-3,4-dihydronaphthalen-1(2h)-ylidene]octa-2,6-dienoic acid 0.917 8 3RB (2e,4e,6z,8e)-3,7-dimethyl-8-(6,7,8,9-tetrahydro-5h-benzo[7]annulen-5-ylidene)octa-2,4,6-trienoic acid 0.840