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108138 Aldrich

Benzenesulfonyl chloride


  • CAS Number 98-09-9

  • Linear Formula C6H5SO2Cl

  • Molecular Weight 176.62

  •  Beilstein Registry Number 606926

  •  EC Number 202-636-6

  •  MDL number MFCD00007426

  •  PubChem Substance ID 24846802

  •  eCl@ss 39092406

  • Popular Documents:  FTNMR (PDF)  


Related Categories Analytical Reagents, Analytical/Chromatography, Building Blocks, Chemical Synthesis, Derivatization Reagents,
vapor pressure   0.04 mmHg ( 20 °C)
assay   99%
refractive index   n20/D 1.551(lit.)
bp   251-252 °C(lit.)
mp   13-15 °C(lit.)
solubility   alcohol: soluble
  cold water: insoluble
  diethyl ether: soluble
density   1.384 g/mL at 25 °C(lit.)



1 kg in glass bottle

5, 100, 500 g in glass bottle


Benzenesulfonyl chloride may be used to develop fast, accurate and reproducible method for thiamine assay in different food products1. It is useful reagent for preparing α-disulfones2.

General description

Benzenesulfonyl chloride is prepared by reaction of benzene and chlorosulfonic acid or from the sodium salt of benzenesulfonic acid and PCl5 or POCl33. It reacts with Grignard reagent from N-unsubstituted indoles to form oxindoles or substituted indoles4. Benzenesulfonyl chloride is the derivatization reagent for the determination of various amines in waste water and surface water at the sub-ppb level by gas chromatography-mass spectrometry5.

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