SMILES: CC1(CC(=O)C2=CC=CC=C2C1=O)S(=O)(=O)[O-]
Description: The molecule is an organosulfonate oxoanion that is the conjugate base of menadione sulfonic acid, arising from deprotonation of the sulfo group; major species at pH 7.3. It is a conjugate base of a menadione sulfonic acid.