Hydroxyanthraquinone
# Hydroxyanthraquinone

A hydroxyanthraquinone (formula: $C_{14}H_7O_2(OH))$ is any of several organic compounds that can be viewed as derivatives of an anthraquinone through replacement of one hydrogen atom (H) by a hydroxyl group (-OH).

The IUPAC nomenclature recommends hydroxyanthracenedione.

Usually "hydroxyanthraquinone" refers to a derivative of 9,10-anthraquinone.

## Isomers

In general, the term may mean any anthraquinone derivative where any number n of hydrogens have been replaced by n hydroxyls, so that the formula is C $_{14}H$ $_{10}O$ $_{2+n}.$ In this case, the number n (which is between 1 and 8) is indicated by a multiplier prefix (mono-, di-, tri-, up to octa-). Additional hydroxy- compounds can be derived from the other isomers of the latter. From 9,10-anthraquinone, only two single-hydroxy derivatives are possible.

