The molecule is the conjugate base of 2,8-dihydroxy-1,4-naphthoquinone arising from selective deprotonation of the 2-hydroxy group; major species at pH 7.3. It is a conjugate base of a 2,8-dihydroxy-1,4-naphthoquinone.
5-hydroxy-7,8-dioxonaphthalen-1-olate