bispyribac-sodium 20% WP Used for removing annual weeds on rice
Toxicity
In male rats, acute transoral LD504111mg/kg, female >2635mg/kg,
and rat acute transdermal LD50>200mg/kg. No irritation to rabbit
skin, slight irritation to rabbit eyes, no teratogenic, mutagenic
effect. Quail LD502250mg/kg, halibut LC50 > 100mg/L (96h), water
flea LC50 > 100mg/L (48h).
Chemical property
The pure product is white powder solid, m.p.223-224, vapor pressure
< 5.05 10-9Pa (25), solubility at 25
Purpose
Pyrimidine salicylic acid herbicides, acetolactase inhibitors,
through the biological synthesis of branched chain amino acids and
play a role, suitable for crop rice. It is mainly used for weeding
after seedling of direct seeding rice. It is effective to barnyard
grass at 1-7 leaf stage, especially at 3-6 leaf stage. It also has
good control effect on plantain forearm grass, miscanthus, Arabic
sorghum, amaranth, duckweed, melon fur grass, Cyperus heterotypica,
crushed sedge, Damasang, fluorescence, purslane and millet grass.
This product is stable for most soil and climate environment, and
can be mixed with other pesticides.
| Product Name | bispyribac-sodium |
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| Function | Herbicide |
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| Specification | 95% TC, 10% SC, 40% SC, 20% WP, 80% WP |
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| Chemical Name | sodium 2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoate |
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| CAS No. | [125401-75-4] for acid; [125401-92-5] for sodium salt |
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| Empirical Formula | C19H17N4NaO8; C19H18N4O8 for the acid |
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| Toxicology | Oral Acute oral LD50 for male rats 4111, female rats 2635, male and
female mice 3524 mg/kg. Skin and eye Acute percutaneous LD50 for
rats >2000 mg/kg. Non-irritating to skin; slightly irritating to
eyes (rabbits). Inhalation LC50 (4 h) for rats >4.48 mg/l. NOEL
(2 y) for male rats 20 mg/kg diet (1.1 mg/kg b.w. daily), female
rats 20 mg/kg diet (1.4 mg/kg b.w. daily), male mice 14.1 mg/kg
daily, female mice 1.7 mg/kg b.w. daily. ADI 0.011 mg/kg. Other
Non-mutagenic in the Ames test, and non-teratogenic to rats and
rabbits. Toxicity class WHO (a.i.) U |
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| Applications | Mode of action Selective, systemic post-emergence herbicide,
absorbed by foliage and roots. Uses Control of grasses, sedges and
broad-leaved weeds, especially Echinochloa spp., in direct-seeded
rice, at rates of 15-45 g/ha. Also used to stunt growth of weeds in
non-crop situations. |
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| Package | 25KG/Drum, 25KG/Bag, 1Kg/Al bag,5L/Drum,1L/Bottle, 500ml/Bottle, 250ml/Bottle, 200ml/Bottle,
100ml/Bottle, 50ml/Bottle etc. etc |
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