The molecule is a phenolate anion obtained by deprotonation of the 2-hydroxy group of norsolorinic acid anthrone. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of a norsolorinic acid anthrone.
2-hexanoyl-3,6,8-trihydroxy-9-oxo-10H-anthracen-1-olate