Purity Limit: ≥ 99% (Assay) CAS No.: 52-90-4 Molecular Formula: C3H7NO2S Molecular Weight: 121.16 MDL No.: MFCD00064306 Appearance: White crystalline powder Melting Point: 220 °C (dec.) Optical Rotation: [a]D = +7 to +9.5º Storage Temperature: Store at RT