English word tosyl comes from English toluene, English sulfonyl
| Dictionary entry | Language | Definition |
|---|---|---|
| toluene | English (eng) | (organic compound) A colourless, inflammable liquid hydrocarbon, methylbenzene, CH3.C6H5, used as a solvent, in high-octane fuels and in the production of many chemical compounds. |
| sulfonyl | English (eng) | (chemistry) The bivalent radical or functional group -SO2-. (organic chemistry) Any univalent radical derived from a sulfonic acid. |
| tosyl | English (eng) | (organic chemistry, especially in combination) toluenesulfonyl, phenylmethylsulfonyl. |