4-(4-((p-Aminophenyl)sulphonyl)anilino)-4-oxobutyric acid, compound with 2,2'-iminodiethanol (1:1) 547-36-4 EINECS 208-920-6 Succisulfona [INN-Spanish] Succisulfone 2,2'-iminodiethanol salt Succisulfonum [INN-Latin]