Purity Limit: ≥ 97% (HPLC) CAS No.: 52152-93-9 Molecular Formula: C22H19N4O8S2Na Molecular Weight: 554.5 MDL No.: MFCD07793338 Appearance: White to off-white crysalline powder Optical Rotation: +16.5 to +20 ° (C = 1 in Water) Storage Temperature: Store at 0-8°C