ChEBI: (1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl){4-[(6-methoxypyridazin-3-yl)sulfamoyl]anilino}methanesulfonic acid is a sulfonamide that is aminomethanesulfonic acid in which a hydrogen attached to the carbon has been replaced by a 1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl group and in which a hydrogen attached to the amino group has been replaced by a p-[(6-methoxypyridazin-3-yl)sulfamoyl]phenyl group. It is a sulfonamide, an aromatic ether, a member of pyridazines, an amino sulfonic acid and a pyrazolone.