Molecular formula: C19H16N5NaO7S3 Molecular weight: 545.53 Quality specification:Export Standard Appcarance:Primrose Yellow Powder PH:6.72 Clarity and Color:Clear Solution ,No.8 Standard Color Class Water:2.80% Related Substances:1.20% Content: Count Based on Anhydrous,90.40% Indentification: (1)HPLC Reactive:comply (2)I.R Reactive:comply Packing:1KG、6KG/Aluminum Tin