acetic acid,ethane-1,2-diol,4-methylbenzenesulfonic acid

acetic acid,4-methylbenzenesulfonic acid,pentane-1,5-diol

2-(2-hydroxyethoxy)ethyl acetate,4-methylbenzenesulfonic acid

对甲苯磺酸正丁酯

4-甲基苯磺酸丙酯