P-toluenesulfonyl

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Synonyms: 4-methylbenzenesulphonyl chloride, tosyl chloride, p-toluenesulphonyl chloride Molecular formula: C7H7ClO2S CAS No: 98-59-9 EC No: EINECS No 202-684-8

Physical data Appearance: White to off-white crystalline solid Melting point: 67 - 69 C Boiling point: 134 C

Solubility in water: insoluble

P-toluenesulfonyl is often used as a protecting group of alcohols in organic synthesis.

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