4-Acetamido-2-hydroxybenzoic acid 50-86-2 Benzoic acid, 4-(acetylamino)-2-hydroxy- N-Acetyl-4-aminosalicyclic acid N-Acetyl-p-aminosalicylic acid NSC54182 Salicylic acid, 4-acetamido- p-Acetamidosalicylic acid