| Cyhalofop-butyl |
Chemical Name: butyl (2R)-2-[4-(4-cyano-2-fluorophenoxy)phenoxy]propanoate Formula: C20H20FNO4 Molecular Weight: 357.38 CAS No.: 122008-85-9 Structure:
Description: Appearance: White crystalline powder Melting Point: 50°C. Vapour Pressure: 0.053 mPa(25°C). Stability: insoluble in water, soluble in most organic solvents. Stable at pH 4, hydrolysed slowly at pH 7. Specification: Content: 95 %min Loss on Drying: ≤2 % PH Value: 4.5-7.0 Specification: 95%TC, 10%EC Uses: Post-emergence herbicide with foliar uptake only and no soil activity. A systemic herbicide that is readily absorbed by plant tissue is moderately phloem-mobile and accumulates in meristematic regions. Grass weeds cease growth immediately after treatment, with yellow patches appearing within 2-3 days to one week, leading to necrosis and death of the whole plant within 2 to 3 weeks. For post-emergence control of grass weeds in rice. Applied at 75-100 g/ha in tropical rice and 180-310 g/ha in temperate rice. For selectivity in Poaceae species. Toxicology: Acute oral LD50: > 5000 mg/kg in rats Acute dermal LD50 (rabbits): > 2000 mg/kg Acute 4-hour rat inhalation LC50: > 5.63 mg/l Acute Skin Irritation (rabbit): non irritating Acute Eye Irritation (rabbit): minimally irritating Skin Sensitization (guinea pig): sensitizer |
