2-ACETOXY-4-(ACETYLAMINO)BENZENESULFONIC ACID COMPOUND WITH PYRIDINE (1:1); 2-acetoxy-4-acetylamino-benzenesulfonic acid, compound with pyridine; 2-Acetoxy-4-acetylamino-benzolsulfonsaeure, Verbindung mit Pyridin; 4-(acetylamino)-2-(acetyloxy)benzenesulfonic acid-pyridine(1:1)