Posted on November 25, 2009 by ktpharm 1,4-Butane sultone CAS No.1633-83-6 1,4-Butane sultone Identification Name 1,4-Butane sultone Synonyms 4-Hydroxy-1-butanesulfonic acid delta-sultone Molecular Structure Molecular Formula C4H8O3S Molecular Weight 136.16 CAS Registry Number 1633-83-6 EINECS 216-647-9 Properties Density 1.331 Melting point 12.5-15 ºC Boiling point 153 ºC (14.2519 mmHg) Refractive index 1.46-1.464 Flash point 154 ºC Water solubility 54 g/L (20 ºC) decomposes Safety Data Hazard Symbols Xn Risk Codes R22;R68 Safety Description S36/37;S45