Fenoxaprop-p-ethyl

fenoxaprop-P-ethyl
Chemical Abstracts name: ethyl (R)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]propanoate
CAS RN: [71283-80-2]

PHYSICAL CHEMISTRY
fenoxaprop-P-ethyl
Mol. wt.: 361.8; M.f.: C18H16ClNO5 Form: White, odourless solid. M.p.: 89-91 ºC. V.p.: 5.3x10-4 mPa (20 ºC). KOW: logP = 4.58. Henry: 2.74x10-4 Pa m3 mol-1 (calc.) S.g./density: 1.3 (20 °C). Solubility: In water 0.7 mg/l (pH 5.8, 20 ºC). In acetone 200, toluene 200, ethyl acetate >200, ethanol c. 24 (all in g/l, 20 ºC). Stability: Fenoxaprop-P-ethyl is stable for 90 d at 50 ºC. Not sensitive to light. Decomposed by acids and alkalis, DT50 >1000 d (pH 5), 100 d (pH 7), 2.4 d (pH 9) (20 ºC).

APPLICATIONS
fenoxaprop-P-ethyl
Biochemistry: Fatty acid synthesis inhibition in grasses, by inhibition of acetyl CoA carboxylase (ACCase).
Mode of action: Fenoxaprop-P-ethyl is a selective herbicide with contact and systemic action, absorbed principally by the leaves, with translocation both acropetally and basipetally to the roots or rhizomes.
Uses: Post-emergence control of annual and perennial grass weeds in potatoes, beans, soya beans, beets, vegetables, peanuts, flax, oilseed rape, and cotton; and (when applied with the herbicide safener mefenpyr-diethyl) annual and perennial grass weeds and wild oats in wheat, rye, triticale and, depending on ratio, in some varieties of barley.
Phytotoxicity: Non-phytotoxic to broad-leaved crops.
Formulation types: EC; EW; SE.