Hexahydroxynaphthoquinone

Hexahydroxynaphthoquinone can be any of several organic compounds, including:
 * Hexahydroxy-1,4-naphthalenedione (spinochrome E)
 * Hexahydroxy-1,2-naphthalenedione
 * Hexahydroxy-2,3-naphthalenedione
 * Hexahydroxy-2,6-naphthalenedione