Synonyms:
2,3-dihydro-2,3-dioxo-1h-indole-5-sulfonic acid ; isatin sulfonic acid ; 5-sulfoisatin ; 2,3-dioxo-2,3-dihydro-1h-indole-5-sulfonic acid ; 2,3-dioxo-5-indolinesulfonic acid ; 2,3-dioxoindoline-5-sulphonic acid ; 2,3-dioxoindoline-5-sulfonic acid ; einecs 230-773-1