high quality of Methotrexate Sodium cas no 15475-56-6

high quality of Methotrexate Sodium cas no 15475-56-6

TEST                                 STANDARD                    RESULT

Characteristics              Yellow crystalline powder                        Conforms

Solubility              Freely soluble in water, slightly soluble in               Conforms

                      alcohol, sparingly soluble in chloroform                 

Identification                 IR, UV, conforms                             Conforms

Chromatographic purity

Total:                           ≤2.0%                                   0.81%

Individual:                       ≤0.5%                                   0.36%

Specific rotation             between +18° and +23°                           +21.0°

Organic volatile impurities         Conforms                                Conforms

Assay                      Not less than 98.0%                             99.26%

Bacterial endotoxins        Not more than 0.5EU/mg                          Conforms

Result: Conform with the corporate standard.