4-Methylbenzenesulfonyl chloride 4-Toluenesulfonyl chloride 98-59-9 Benzenesulfonyl chloride, 4-methyl- NSC175822 Toluenesulfonyl chloride Tosyl chloride p-Methylbenzenesulfonyl chloride p-Toluenesulfochloride p-Toluenesulfonic acid chloride p-Toluenesulfonyl chloride p-Toluenesulphonyl chloride p-Tolylsulfonyl chloride p-Tosyl chloride