| p-toluenesulfonic acid, butyl ester |
| 4-methyl-benzenesulfonic aci butyl ester |
| butyl 4-methylbenzenesulfonate |
| butyl p-methylbenzenesulfonate |
| butyl tosylate |
| butyl-p-toluenesulfonate |
| n-butyl p-toluenesulfonate |
| butyl toluene-4-sulphonate |
| Butyl 4-toluenesulphonate |
| Benzenesulfonic acid,4-methyl-,butyl ester |
| Butyl para-toluenesulfonate |
| toluene-4-sulfonic acid butyl ester |
