Synonyms: 3-Cyclopentene-1,2-dione,4,4'-(3,7,12,16-tetramethyl-1,3,5,7,9,11,13,15,17-octadecanonaene-1,18-diyl)bis[3,5,5-trimethyl-,(all-E)-; 3-Cyclopentene-1,2-dione,4,4'-(3,7,12,16-tetramethyl-1,3,5,7,9,11,13,15,17-octadecanonaenylene)bis[3,5,5-trimethyl-,(all-E)- (8CI); Violerythrin