Diflufenican
Specification : 98%TC, 200SC, 500SC
Chemical Name: N-(2,4-difluorophenyl)-2-[3-(trifluoromethyl)phenoxy]-3-pyridine carboxamide.
Formula: C19H11F5N2O2.
Molecular weight: 394.30.
CAS No. : 83164-33-4
Description:
Appearance : White powder.
Melting Point: 162-163°C.
Vapour Pressure: 0.07m Pa at 20°C.
Stability : Solubility in water 0.5mg/L, 45, in acetone 100g/L, 50g/l in hypnone and cyclohexanone; <10g/l in cyclohexane, 2-ethoxylethanol and kerosene; 35g/kg in 3,5,5- trimethylcyclohexyl-2- ketene, 20g/kg in xylene
Uses: it is a broad-spectrum selective herbicide for wheat field, used before or after sprouting as 125-250G/ha to prevent and remove gramineous weeds and broad leaved weeds, especially for cleavers, speedwell and violet weed.
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.
Diflufenican 500SC |
Appearance |
mild-like viscous liquid |
Content of a.i. |
≥500g/L |
Wet sieve(75µm sieve) |
≤2 % |
Wetting time |
≤60s |
Suspensibility |
≥90 % |
Pouribility |
≤ 5% |
Persistent foam |
≤60ml |
Stability at 0±2°C |
Qualified |
Stability at 54±2°C |
Qualified |
HANGZHOU TIANLONG BIOTECHNOLOGY CO., LTD.
Office Add: Room 1906,Fengqi Times Tower, No.338 Fengqi East Road, Hangzhou, Zhejiang, China.
Web: chemsales.en.made-in-china.com
HANGZHOU TIANLONG BIOTECHNOLOGY CO., LTD.
Office Add: Room 1906,Fengqi Times Tower, No.338 Fengqi East Road, Hangzhou, Zhejiang, China.
Web: chemsales.en.made-in-china.com