Item:                                                      Specification                                              results

Appearance:                                                    White or yellowish powder                        yellowish powder

Identification: 

1.TLC                                                                       correspond                                                correspond

2.IR-sepctrum                                                        correspond                                                correspond

3.Aromatic primary amine ID reaction               correspond                                                correspond

Alkalinity                                                                    7.2-9.2                                                         8.8

Clarification  of solution                                       Clarification                                                Clarification

Related substances                                    single max impurity 0.3% max                        correspond

                                                                         Total impurities 1.0% max

Water                                                                        5.0% max                                                    4.0%

Arsenic                                                                   0.0002% max                                              correspond

Assay                                                                       99.0% min                                                    99.7%

(the anhydrous substance)

Conclusion: The product conform to the C.P.V.2010

Sulfachloropyridazine sodium