Tosyl chloride

CAS Registry Number®

98-59-9

CAS Name

Tosyl chloride

Molecular Formula

C7H7ClO2S

Molecular Mass

190.65

Cite this Page

Tosyl chloride.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?ref=98-59-9 (retrieved 2025-07-14) (CAS RN: 98-59-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    146 °C @ Press: 15 Torr

  • Melting Point (1)

    69-71 °C

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/C7H7ClO2S/c1-6-2-4-7(5-3-6)11(8,9)10/h2-5H,1H3

InChIKey

InChIKey=YYROPELSRYBVMQ-UHFFFAOYSA-N

SMILES

S(Cl)(=O)(=O)C1=CC=C(C)C=C1

Canonical SMILES

O=S(=O)(Cl)C1=CC=C(C=C1)C

Other Names for this Substance

  • Benzenesulfonyl chloride, 4-methyl-
  • p-Toluenesulfonyl chloride
  • 4-Methylbenzenesulfonyl chloride
  • p-Methylbenzenesulfonyl chloride
  • Tosyl chloride

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