Synonyms: Benzenesulfonamide, 4-amino-N-(6-chloro-3-pyridazinyl)-, Sulfanilamide, N1-(6-chloro-3-pyridazinyl)- (6CI,7CI,8CI), 3-Chloro-6-sulfanilamidopyridazine, 6-Sulfanilamido-3-chloropyridazine, BA 10370, Bactolin, Ciba 10370, Consulid, Cosulid, Durasulf, N1-(6-Chloro-3-pyridazinyl)sulfanilamide, Nefrosul, Renalsulfa, Sonilyn, Sulfachlorpyridazine, Sulfaclorazina, Sulfarene, Sulfochlorpyridazine, Sulpirazina