| Molecular Formula | C9H5Cl3O |
| Molar Mass | 235.49 |
| Physical and Chemical Properties | White crystal. Melting point 65-67 ℃. |
| Use | an intermediate of chlorpropyne iodine. |
| production method | bromination of phosphorus tribromide with propargyl alcohol to produce propargyl bromide, followed by 2,4, the product was prepared by condensation of 5-trichlorophenol under the action of sodium carbonate (deacidification). |