SMILES: CC1=CC(=O)OC2=C1C=CC(=C2)OS(=O)(=O)[O-]
Description: The molecule is an organosulfate oxoanion that is the conjugate base of 4-methylumbelliferone sulfate, obtained by deprotonation of the sulfo group; major species at pH 7.3. It is a conjugate base of a 4-methylumbelliferone sulfate.