4-(Hydroxy(oxido)amino)-2-sulfobenzoic acid 5344-48-9 (POTASSIUM SALT) AIDS-155823 AIDS155823 Benzoic acid, 4-nitro-2-sulfo- Benzoic acid, 4-nitro-2-sulfo-, monopotassium salt Benzoic acid, 4-nitro-2-sulfo-, potassiumsulfonate salt NSC1122 (POTASSIUM SALT)