Molecular Weight:164.59 CAS No.[14794-31-1] Structural formula: Quality Index: Description:colorless clear liquid Assay:≥98.5% Identification:Positive Boiling Point:88-90℃/11mm Refractive index:1.432-1.441 Transmittance:90% Succinic anhydride:0.5% Thionyl chlorite:0.5%