Name: P-Nitrochlorobenzene-o-sulfonic acid                                                                                                                                            

Alias: 2-Chloro-5-nitrobenzene sulfonic acid; 2-chloro-5-nitro-Benzenesulfonic acid;     

2-chloro-5-nitrobenzenesulphonic acid                                                                                                                                                                

CAS No.: 96-73-1                                                                                                                                                                   

EINECS: 202-528-9                                                                                                                  

Molecular formula: C₆H₄CLNO₅S   

Molecular weight:  237.62

Structural Formula:    

Physicochemical Property:   

Monoclinic crystal, fusing point 169°C(disintegrated).

Slight soluble in water, ethanol.