90019-60-6 2,5,7-Decatrien-9-yn-4-one,1,1'-[10,15-bis(1,1-dimethylethyl)-7,9,15,17-cyclooctadecatetraene-2,4,11,13-tetrayne-1,16-diylidene]bis[8-(1,1-dimethylethyl)-10-(trimethylsilyl)-, (E,E,E,E,Z,Z,E,E,Z,Z,Z,Z)- 90019-62-8 2,4,10,12,15,17,23,25-Cyclohexacosaoctaene-6,8,19,21-tetrayne-1,14-dione, 5,10,18,23-tetrakis(1,1-dimethylethyl)-, (E,E,E,E,Z,Z,Z,Z)- 793-39-5 1-methylpentacyclo[6.6.6.0~2,7~.0~9,14~.0~15,20~]icosa-2,4,6,9,11,13,15,17,19-nonaene (non-preferred name) 61062-44-0 1H-Xanthene-9-acetic acid,2,3,4,5,6,7,8,9-octahydro-9-methyl-1,8-dioxo-, ethyl ester