Bispyribac Sodium Herbicide

Common name: Bispyribac-sodium

Chemical name: 

2,6-Bis((4,6-dimethoxy-2-pyrimidinyl)oxy)-benzoic acid sodium salt 

Molecular formula: C19H17N4NaO8

Structural formula:

Molecular weight: 452.35

CAS No. : 125401-92-5 

Physical and chemical properties:

The pure product is a white powdery solid, mp223～224℃, vapor pressure<5.05×10^-9Pa(25℃), solubility at 25℃: methanol 26.3g/L, acetone 0.043g/L, water 73.3g/L , The half-life in water is 1 year (pH value 7-9), it will not decompose when stored at 55℃ for 14 days, pKa3.05.

Product description：

Pyrimidine salicylic acid herbicides, acetolactase inhibitors, act by inhibiting the biosynthesis of branched-chain amino acids, and are suitable for crop rice. It is mainly used for the post-emergence weeding of direct-seeded rice. It is effective for barnyardgrass at the 1 to 7 leaf stage, and the control effect is particularly good at the 3 to 6 leaf stage. It also has a good control effect on plantain grass, Miscanthus, Arabian sorghum, Amaranthus purpurea, Commelina, melon fur, heteromorphic sedge, Cardamine sedge, Crabgrass, Firefly, Bacopa monnieri and Corngrass. This product has a stable effect on most soils and climatic environments, and can be mixed with other pesticides.

Usage：Bispyribac-sodium is an ultra-efficient, broad-spectrum, low-toxic herbicide. It is mainly used to control grassy weeds and broadleaf weeds such as barnyardgrass in rice fields. use. It is used to control grassy weeds and broad-leaved weeds such as barnyardgrass in rice fields. It can be used in seedling field, direct seeding field, seedling transplanting field and seedling throwing field.