Diquat dibromide CAS 85-00-7

CommonName: Diquat ,Piquet/Deiquat/Reward/ dibromide
Synonyms:1,1'-ethylene-2,2'-bipyridyldiylium dibromide salt
MolecularFormula:C12H12Br2N2
Molecular Weight: 344.06

Properties:
Technical diquat dibromide, which is greater than 95% pure, forms white to yellow crystals . Formulation dark brown liquid, odorless. Stable in neutral or acid solutions; decomposes in alkaline solutions. Slightly soluble in alcohols, hydroxylic solvents. Practically insoluble in nonpolar organic solvents.

Uses:
Diquat is used as pre-harvest desiccation of cotton, flax, alfalfa, clover, lupins, oilseed rape, poppies, soya beans, peas, beans, sunflowers, cereals, maize, rice, sugar beet, and other seed crops; destruction of potato haulms; and stripping of hops. Control of annual broad-leaved weeds in vines, pome fruit, stone fruit, bush fruit, strawberries (also control of runners), citrus fruit, olives, hops, vegetables, ornamental plants and shrubs, and other crops. Control of emergent and submerged aquatic weeds. Weed control on non-crop land. Weed control and tassel inhibition in sugar cane.

Application rates 400-1000 g/ha.

Toxicity:
(Rat): Oral LD50 600 mg/kg b.w.
(Rabbit): Dermal LD50 260 mg/kg b.w.
(Rat): Inhalation LC50 (4 h) 0.121 mg/l air