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National standard No. 61687
CAS No. 98-59-9
English name 4-toluene sulfonyl chloride

Alias 4-Toluene sulfochloride; 4-Methylbenzenesulfonyl chloride; p-Toluenesulfonyl chloride; Toluene-4-sulfonyl chloride; 4-Toluolsulfonyl chloride; p-Tosyl Chloride; PTSC; P-toluene sulfonyl chloride; p-Toluene Benzyl Sulfonyl Chloride; 4-toluene sulfonyl chloride; P-toluene Sulphonyl chloride
Molecular formula C₇H₇ClO₂S; CH₃C₆H₄SO₂Cl
Appearance and property White diamond crystal with irritating odor
Molecular weight 190.65 vapour pressure 0.13kPa(88^οC)
Melting point 71^οC
boiling point: 145^οC/2.0kPa
Solubility Insoluble in water, easily soluble in alcohol, ether and benzene