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    | product Name | Tetramethylene sulfone |  
    | Synonyms | Sulfolane; 2,3,4,5-Tetrahydrothiophene-1,1-dioxide; Thioxyclopentane-1,1-dioxide; (Cyclo) Tetramethylene Sulfone; Tetrahydrothiophene S,S-dioxide; Tetramethylene sulphone; Sulpholane; tetrahydrothiophene 1,1-dioxide |  
    | Molecular Formula | C4H8O2S |  
    | Molecular Weight | 120.1701 |  
    | InChI | InChI=1/C4H8O2S/c5-7(6)3-1-2-4-7/h1-4H2 |  
    | CAS Registry Number | 126-33-0 |  
    | EINECS | 204-783-1 |  
    | Molecular Structure |   |  
    | Density | 1.261g/cm3 |  
    | Melting point | 27.4-27.8℃ |  
    | Boiling point | 285.6°C at 760 mmHg |  
    | Refractive index | 1.485 |  
    | Flash point | 170.7°C |  
    | Water solubility | soluble |  
    | Vapour Pressur | 0.00479mmHg at 25°C |  
    | Hazard Symbols |  Xn:Harmful; 
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    | Risk Codes | R22:; 
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    | Safety Description | S25:; 
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