. "5-(2-carboxy-2-aminoethyl)-2-hydroxy-1,4-benzoquinone"@en . . . . . . . . . . . "6-hydroxydopa quinone"@en . . . "2,4,5-trihydroxyphenylalanine quinone"@en . . . "experimental"@en . . . . "5-(2-carboxy-2-aminoethyl)-4-hydroxy-1,2-benzoquinone"@en . . . . "Topa quinone"@en . . . . . . . . . . . . . . . .