TZN09H: Tizanidine EP Impurity I (Monohydrate)

p-Toluene Sulfonic Acid Monohydrate ;

4-Methylbenzenesulfonic acid monohydrate ;

CAS # 104-15-4 (anhydrous) ; 6192-52-5 (monohydrate) ;

C7H8O3S (anhydrous) ; MW: 172.20 ;

C7H10O4S (monohydrate) ; MW: 190.22 ;