Synonyms: 2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl-5-(3,7,11,15,19,23,27,31-octamethyl-2,6,10,14,18,22,26,30-dotriacontaoctaenyl)-,(all-E)-; p-Benzoquinone,2,3-dimethyl-5-(3,7,11,15,19,23,27,31-octamethyl-2,6,10,14,18,22,26,30-dotriacontaoctaenyl)-(8CI); Plastoquinone 8