1,4-BS also called 1,4-Butane sultone,the Cas No.is 1633-83-6.And the molecular formular is C₄H₈O₃S. It is colorless to yellowish liquid.
Uses:
1.Intermediates of medicine, chemical reagents, surfactants, color dye sensitizers.
2.Used as an intermediate for photosensitive materials.
3.Used in organic synthesis, surfactant.
4.Synthetic starting materials for electroplating intermediates

Chemical name:1,4-BS 
Other name:1,4-Butane sultone
Molecular formula:C₄H₈O₃S
Molecular weight:136.17
CAS NO.:1633-83-6
Appearance: Colorless to yellowish liquid
Assay: 98%
Package:25kg/drum,200kg/canister