2-Methyl-3-ethylbenzoxazolium p-toluenesulfonate 3-Ethyl-2-methylbenzoxazolium p-toluenesulphonate 60126-36-5 Benzoxazolium, 3-ethyl-2-methyl-, salt with 4-methylbenzenesulfonicacid (1:1) EINECS 262-069-5