ALACHLOR [TRADE NAME]: ALACHLOR [COMMON NAME]: LASSO [OTHER NAME]: CP50144, LAZO [STRUCTURE]: [CHEMICAL STRUCTURAL FORMULA]:2-chloro-2\'\',6\'\'-diethyl-N-(methoxymethy)acetacetanilide [PHYSICAL & CHEMICAL PROPERTIES]: The product is milky solid, melting point 39.5--41.5, boiling point100/0.02mmHg, vapor tension 2.9mPa(25 ), solubility in water of 25 is 242mg/L, dissolved in acet, benzene, ethanol, acetic ether, slightly dissolved in heptane. Decomposed at 105 be stable to UV, hydrolyzed in the condition of strong acid and alkalescence. The remaining time in earth is 42-70d, and losing by the effect of animalcule. [AGENT TYPE]:95%crude medicine,480g/L. [APPLICATION]: Forepart herbicide before or after bud, used in 1.68 4.48kg/ha, can protect and get rid of the ruderal of cotton, corn, cole, peanut, soy and sugar cane field. [ANALYSIS METHOD]: Chromatography of gases.