Pretilachlor Amides Herbicide

Common name: Pretilachlor

Product description：

Propolachlor, also known as Saufort, is mainly used in direct-seeded rice fields. Correctly mastering the method of use has the characteristics of safe growth of direct-seeded rice, broad weed-killing spectrum, and good weeding effect. It can basically control the damage of weeds throughout the growth period. It is an ideal agent for the prevention and treatment of resistant weeds such as barnyardgrass and stephanotis.

Chemical name:  

2-chloro-N-(2,6-diethyl-phenyl)-N-(2-propoxy-ethyl)-acetamide

Molecular formula:  C17H26ClNO2

Structural formula: 

Molecular weight: 311.85

CAS No. :  51218-49-6

Physical and chemical properties:

The pure product is a colorless liquid. b.p.135℃/0.1Pa, relative density 1.076 (20℃), vapor pressure 0.133×10^-3Pa. Easily soluble in most organic solvents, the solubility in water at 20°C is 50mg/L, and the partition coefficient (n-octanol/water) is 12020. It is stable when stored at room temperature for 2 years. The half-life of hydrolysis at 20℃ is 200d (pH=1-9), 14d (pH=13), and the half-life in soil is 20-50d.

Usage：

Selective pre-emergence herbicide, cell division inhibitor. Weeds absorb drugs through the hypocotyl and coleoptile, interfere with protein synthesis, and have an indirect effect on the photosynthesis and respiration of weeds. Generally through soil treatment, the control of weeds such as barnyardgrass, duck leaf weeds, sedges, mother grasses, cow felts, algae, firefly, etc., has poor control effect on perennial weeds. The dosage is 4.5～5.3g/100m2, such as rice seedling field or direct seeding field, use 30% EC 15～17mL/100m2, spray water or mix poisonous soil.