Common name: quizalofop-P-ethyl
IUPAC name: ethyl (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionate
Mol. wt.: 372.8; M.f.: C19H17ClN2O4; Form: White, crystalline, odourless solid. M.p.: 76.1-77.1 ºC. B.p.: 220 ºC/26.6 Pa V.p.: 1.1x10-4 mPa (20 ºC). KOW: logP = 4.66 S.g./density: 1.36 g/cm3 Solubility: In water 0.61 mg/l (20 ºC). In acetone, ethyl acetate and xylene >250, 1, 2-dichloroethane >1000 (all in g/l, 22-23 °C); in methanol 34.87, n-heptane 7.168 (both in g/l, 20 °C). Stability: Stable in neutral and acidic media, but unstable in alkaline media; DT50 <1 d (pH 9). Stable at high temperatures and in organic solvents. Specific rotation: [a]D20 +35.9?(20 ºC).
Biochemistry: Acetyl CoA carboxylase inhibitor; inhibition of fatty acid biosynthesis.
Mode of action: Systemic herbicide, absorbed from the leaf surface, with translocation throughout the plant, moving in both the xylem and phloem, and accumulating in the meristematic tissue.
Uses: Selective post-emergence control of annual and perennial grass weeds in potatoes, soya beans, sugar beet, peanuts, oilseed rape, sunflowers, vegetables, cotton, and flax.
Phytotoxicity: Most non-graminaceous crops are tolerant.
Formulation types: EC; SC.
Compatibility: Can be used in combination with post-emergence broad-leaved herbicides.
Oral: Acute oral LD50 for male rats 1210, female rats 1182, male mice 1753, female mice 1805 mg/kg.
NOEL: (90 d) for rats 7.7 mg/kg daily.
Toxicity class: EPA (formulation) II (5EC)
Birds: Acute oral LD50 for mallard ducks and bobwhite quail >2000 mg/kg.
Fish: LC50 (96 h) for rainbow trout >0.5 mg/l.
Daphnia: LC50 (48 h) 0.29 mg/l.
Algae: Assumed similar to racemate.
Bees: Assumed similar to racemate.
Worms: LC50 >1000 mg/kg.
Animals: The degradation pattern is the same as that for quizalofop-ethyl.
Plants: The degradation pattern is the same as that for quizalofop-ethyl.
Contact Name: Kevin Xu
Company Name: Shanghai Skyblue Chemical Co., Ltd.
Street Address: Rm 15A02, Changhang
Mansion, No.800, Zhangyang Road,
Pudong, Shanghai, 200122, China
Member name: skybluechem
Member Since: 17 June 2010
Total Leads: 76 skybluechem Import Export Business Leads
Business focus: Piperonyl Butoxide, D-allethrin, Diethyltoluamide, Cartap, Tetramethrin, Atrazine, Quizalofop-p-ethyl, Tribenuron-methyl, Acetochlor, Ametryn, Simazine
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