Molecular formula: C17H19N5 Molecular weight: 293.4 Quality specification :Enterprise Standard Appcarance:White crystalline powder Melting Point:81.8-82.9℃ Related Substance:0.20% Single Impurity:0.10% Limit of Cyclohexane:ND Limit of Ethyl Acetate:0.05% Loss on Drying:0.20% Assay:99.50% Indentification:Corresponding to IR Absorption Spectrum Solubility:Practically insoluble in water, slightly soluble in 0.1mol/L hydrochloric acid solution, freely soluble in methanol, ethanol, chloroform and ethyl acetate Storage:Cool and Dry Shelf Life:24 Months packing:According to Customer's Request