2,3,5-Trimethyl-6-(11-carboxy-5,10-undecadiynyl)-1,4-benzoquinone 2,7-Dodecadiynoic acid, 12-(2,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)- 90316-11-3 AA 1777 AA-1777