OPTSC

o,p-Toluenesulfonylchloride

Structural Formula

Empirical Formula     C7H7ClO2S

Molecular Weight        191

Specification       
        Appearance  ................   Light yellowish liquid

Properties
       Assay    ........................      97.0 % min.  
       Water content       ........     0.5 % max.  
       Colour      ....................     300 ( Pt-Co max.)           
       Total acid as toluene sulphonic acid      ........   0.3 % max.
       ortho-Isomer content        ..............................   70.0 % min.