1 UQ5 2,3-dimethoxy-5-methyl-6-(3,11,15,19-tetramethyl-eicosa-2,6,10,14,18-pentaenyl)-[1,4]benzoquinone 1.000 2 UQ6 5-(3,7,11,15,19,23-hexamethyl-tetracosa-2,6,10,14,18,22-hexaenyl)-2,3-dimethoxy-6-methyl-benzene-1,4-diol 0.884 3 UQ7 Ubiquinone-7 0.792 4 UQ8 Ubiquinone-8 0.717 5 VTQ Rrr-alpha-tocopherylquinone 0.707