102-65-8 27890-59-1 EINECS 203-044-0 N(sup 1)-(6-Chloropyrazinyl)sulfanilamide N1-(6-Chlor-2-pyrazinyl)sulfanilamid Sulfachlorpyrazin Sulfaclozina [INN-Spanish] Sulfaclozine Sulfaclozine [INN] Sulfaclozinum [INN-Latin]