AgroData
Chemical Identification
Common Name
Quizalofop-P-ethyl
中文通用名
精喹禾灵
IUPAC
ethyl (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionate
CAS
ethyl (2R)-2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoate
CAS No.
100646-51-3
Molecular Formula
C19H17ClN2O4
Molecular Structure
Category
Activity
Herbicide
Premix
Fomesafen+Quizalofop-p-ethyl
Fluoroglycofen-ethyl+Quizalofop-p-ethyl+Glyphosate
Clomazone+Quizalofop-P-ethyl+Fomesafen
Emulsifiable concentrate. Premix Parters: tetramethrin;
Physical Properties
Molecular weight:372.8; Physical form:White, crystalline, odourless solid. Density:1.36 g/cm3; Melting point:76.1-77.1℃; Vapour pressure:1.1 × 10-4 mPa(20℃); Partition coefficient(n-octanol and water):logP = 4.66 (23℃); Solubility:In water 0.61mg/l (20℃). In acetone, ethyl acetate and xylene >250, 1,2-dichloroethane >1000 (all in g/l, 22-23 ℃); in methanol 34.87, n-heptane 7.168 (both in g/l, 20℃).; 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.;
Toxicology
Oral:Acute oral LD50 for male rats 1210, female rats 1182, male mice 1753, female mice 1805 mg/kg. Phytotoxicity:Most non-graminaceous crops are tolerant.
Environmental Profile
Ecotoxicology:
Algae:Assumed similar to racemate.Bees:Assumed similar to racemate.Birds:Acute oral LD50 for mallard ducks and bobwhite quail >2000 mg/kg.Daphnia: LC50 (48 h) 0.29 mg/l.Fish:LC50 (96 h) for rainbow trout >0.5 mg/l.Worms:LC50 >1000 mg/ kg.
Environmental fate:
Animals:The degradation pattern is the same as that for quizalofop-ethyl.Soil:In soil, degrades rapidly to quizalofop-P; DT50 ×1 d.Plant:The degradation pattern is the same as that for quizalofop-ethyl.
Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)

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