Molecular formula: C₉H₉ClO₃

Molecular weight: 200.62

Physical and chemical properties: pure product is white crystal. Melting point 118~119 DEG C. Content of industrial products 85%~95%. Foul smell. Melting point 100~115 DEG C. Insoluble in water. Soluble in ethanol, ethyl ether and other organic solvents. The salt and salt is soluble in water. Esters are insoluble in water.

Use: agriculture as a plant growth stimulant, prevent the tomato fruit early flower and fruit drop, and the formation of the seedless fruit, promoting early maturing crops, accelerating rooting. It can also be used as a herbicide.