(3-hydroxy-1,5-dioxo-3a,4,5,6,7,7a-hexahydro-1H-isoindol-6-yl)oxidanesulfonic acid belongs to the class of organic compounds known as isoindolones. These are aromatic polycyclic compounds that an isoindole bearing a ketone. Based on a literature review a significant number of articles have been published on (3-hydroxy-1,5-dioxo-3a,4,5,6,7,7a-hexahydro-1H-isoindol-6-yl)oxidanesulfonic acid.