Names | |
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Preferred IUPAC name
4-Methylbenzene-1-sulfonyl chloride | |
Other names
Tosyl chloride, p-toluenesulfonyl chloride, p-TsCl, TsCl
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.002.441 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C7H7ClO2S | |
Molar mass | 190.65 g/mol |
Appearance | White solid |
Melting point | 65 to 69 °C (149 to 156 °F; 338 to 342 K) |
Boiling point | 134 °C (273 °F; 407 K) at 10 mmHg |
Reacts with water | |
Hazards[1] | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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Releases HCl on contact with water |
NFPA 704 (fire diamond) | |
Flash point | 128 °C (262 °F; 401 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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4-Toluenesulfonyl chloride (p-toluenesulfonyl chloride, toluene-p-sulfonyl chloride) is an organic compound with the formula CH3C6H4SO2Cl. This white, malodorous solid is a reagent widely used in organic synthesis.[2] Abbreviated TsCl or TosCl, it is a derivative of toluene and contains a sulfonyl chloride (−SO2Cl) functional group.