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Benzenesulfonyl Chloride

CAS No.: 98-09-9
Formula: C6H5ClO2S
Exact Mass: 175.97000
Molecular Weight: 176.62100
PSA: 42.52000
LogP: 2.69490
Description Feedback
Benzenesulfonyl chloride is an organosulfur compound with the formula C6H5SO2Cl. It is a colourless viscous oil that dissolves in organic solvents, but reacts with compounds containing reactive N-H and O-H bonds. It is mainly used to prepare sulfonamides and sulfonate esters by reactions with amines and alcohols, respectively. The closely related compound toluenesulfonyl chloride is often preferred analogue because it is a solid at room temperature and easier to handle.
The compound is prepared by the chlorination of benzenesulfonic acid or its salts with phosphorus oxychloride or, less commonly, by a reaction between benzene and chlorosulfuric acid.
The Hinsberg test for amines involves their reaction with benzenesulfonyl chloride.

Properties Feedback
Appearance & Physical State:clear liquid
Melting Point:14.5ºC
Boiling Point:251-252ºC
Flash Point:128ºC
Refractive Index:1.5508-1.5528
Water Solubility:may decompose
Stability:Stable. Incompatible with water, strong oxidizing agents, strong bases, methyl formamide, dimethyl sulfoxide.
Vapor Pressure:0.04 mm Hg ( 20 °C)

Safety Info Feedback
Hazard Class:8
Safety Statements:S26-S36/37/39-S45
HS Code:2904909090
Packing Group:III
WGK Germany:1
Risk Statements:R22; R29; R34
Hazard Codes:C


Synthesis Route Total: 84 Synthesis Route
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