Diflufenican (98%TC, 50%WDG, 500SC) CAS NO.83164-33-4

packaging & delivery

packaging detail: for liquid: 200ltr/drum, 20l/drum, 1l/bottle, 500ml/bottle, 250ml/bottle, 100ml/bottle.
for solid: 25 kg/drum, 25kg/bag, 1kg/bag or on the requirement of client.
delivery detail: 15days

specifications
common name: diflufenican
other name: n-(2, 4-difluorophenyl)-2-(3-(trifluoromethyl) phenoxy)-3-pyridinecarboxamide
cas no.: 83164-33-4
molecular formula: c12h4cl2f6n4os
specification: 98%tc, 50%wdg, 500sc

physical & chemical properties
form: colourless crystals.
b. p.: v. p.: 4.25 × 10-3 mpa (25 ° c, gas saturation method) henry: 0.033 pa m3 mol-1s. g.
solubility: in water <0.05 mg/l (25 ° c). soluble in most organic solvents, e. g. acetone, dimethylformamide 100, acetophenone, cyclohexanone 50, isophorone 35, xylene 20, cyclohexane, 2-ethoxyethanol, kerosene <10 (all in g/kg, 20 ° c).
stability: stable in air up to melting point. at 22 ° c, very stable in aqueous solution at ph 5, 7 and 9.
fairly stable to photolysis.

toxicity
oral: acute oral ld50 for rats >2000, mice >1000, rabbits >5000 mg/kg.
skin and eye: acute percutaneous ld50 for rats >2000 mg/kg.
non-irritating to skin and eyes (rabbits)
inhalation: lc50 (4 h) for rats >2.34 mg/l air.
application
biochemistry: carotenoid synthesis (phytoene desaturase) & photosynthetic electron flow inhibitor. mode of action: selective contact and residual herbicide, absorbed principally by the shoots of germinating seedlings, with limited translocation. uses: applied at 125-250 g/ha pre- or early post-emergence in autumn-sown wheat and barley to control grass and broad-leaved weeds, particularly galium, veronica and viola spp. normally used in combination with isoproturon or other cereal herbicides. phytotoxicity: any slight phytotoxicity is in the form of small transient patches on basal leaves, with no adverse effect on crop development.