4-Acetoacetsulfanilic acid potassium salt

4-acetoacetsulfanilic acid potassium salt ; 4-[(1,3-dioxobutyl)amino]-benzenesulfonic acimonopotassium salt ; 4-[(1,3-dioxobutyl)amino]-benzenesulfonic aci monopotassium salt ; benzenesulfonic acid,4-[(1,3-dioxo butyl)amino]-,monopotassium salt ; 4-(acetoacetylamino)benzenesulfonic acid potassium salt ; 4-(n-acetylacetamido)-benzenesulfonic acid potassium salt ; potassium 4-acetoacetylaminobenzenesulphonate ; potassium 4-acetoacetylaminobenzenesulfonate ; 4-(n-acetyl acetamido)-benzenesulfonate potassium salt ; n-(acetoacetyl)sulfanilic acid, potassium salt