Synonyms: 2,5-Cyclohexadiene-1,4-dione,2,3-dimethoxy-5-methyl-6-(3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraenyl)-,(E,E,E)-; 2,5-Cyclohexadiene-1,4-dione,2,3-dimethoxy-5-methyl-6-[(2E,6E,10E)-3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraenyl]-(9CI); p-Benzoquinone, 2,3-dimethoxy-5-methyl-6-(3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraenyl)-,stereoisomer (8CI); CoQ4; Coenzyme Q4; Ubiquinone 20; Ubiquinone 4; UbiquinoneQ4