The molecule is a hydroxy monocarboxylic acid anion obtained by deprotonation of the carboxy and 5-hydroxy groups of aklanonic acid. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is an oxo monocarboxylic acid anion and a phenolate anion. It is a conjugate base of an aklanonate.
2-[5-hydroxy-4-oxido-9,10-dioxo-3-(3-oxopentanoyl)anthracen-2-yl]acetate