isorenieratene

Noun

 * 1)  The carotenoid 3,3′-((1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaene-1,18-diyl)bis(1,2,4-trimethylbenzene)