Purity Limit: 950-1030 ug/mg (Assay by Anhydrous basis) CAS No.: 79350-37-1 Molecular Formula: C16H15N5O7S2·3H2O Molecular Weight: 507.5 MDL No.: MFCD03788802 Appearance: White or light yellow crystalline powder Optical Rotation: -75 to -88° Storage Temperature: Store at 0-8°C