Tetrahydroxy-1,4-benzoquinone319-89-1100 % similar 2,5-Cyclohexadiene-1,4-dione, 2,3,5,6-tetrahydroxy-, sodium salt (1:2)1887-02-150 % similar Chloranilic acid87-88-750 % similar Cyclohexanehexone527-31-145 % similar Oxalic acid144-62-733 % similar Alloxan50-71-533 % similar