Features 　　Melting point: -88.4℃, Flash(ing) point: 7 ℃, Boiling point: 111－112℃;? 　　Solubility: 5.6; Refractive index: (20℃) 1.440.?? Uses 　　as Formaldehyde-free Fixative, intermediate of drug, dye, coating and resin modifier. also used in the preparation of zwitterionic macromolecular polymer, polymer monomer, pharmaceutical intermediate and modification of resin.?