| 品名 | CAS ON. | 备注 | 
| PTSA | para-Toluenesulfonamide | |
| OTSA | ortho-Toluenesulfonamide | |
| OPTSA | ortho/para-Toluenesulfonamide | |
| PTSC | para-Toluenesulfonyl chloride | |
| OPTSC | ortho/para-Toluenesulfonyl chloride | 
| 品名 | CAS ON. | 备注 | 
| PTSA | para-Toluenesulfonamide | |
| OTSA | ortho-Toluenesulfonamide | |
| OPTSA | ortho/para-Toluenesulfonamide | |
| PTSC | para-Toluenesulfonyl chloride | |
| OPTSC | ortho/para-Toluenesulfonyl chloride |