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Products >> Herbicides >> Haloxyfop-P

Haloxyfop-P

Haloxyfop-P 92%TC
Haloxyfop-P 10.8%EC

Herbicide
HRAC A WSSA 1; aryloxyphenoxypropionate

Haloxyfop-R-methyl


NOMENCLATURE
haloxyfop-P
IUPAC name (R)-2-[4-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenoxy]propionic acid
Chemical Abstracts name (R)-(+)-2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acid
CAS RN [95977-29-0]

haloxyfop-P-methyl
IUPAC name methyl (R)-2-[4-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenoxy]propionate
Chemical Abstracts name methyl (R)-(+)-2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoate
Other names haloxyfop-R CAS RN [72619-32-0] EEC no. 406-250-0 Development codes DE-535 (Dow)

PHYSICAL CHEMISTRY
haloxyfop-P
Mol. wt. 361.7 M.f. C15H11ClF3NO4 Form Colourless crystals. M.p. 70.5-74.5 °C V.p. 3.5  10-3 mPa (25 °C) KOW logP = 0.27 (pH 7) Solubility In water 375 mg/l (20 ºC). In acetone, dichloromethane, methanol, xylene >639 g/l (20 ºC). pKa 4.27

haloxyfop-P-methyl
Composition The (R)- isomer of haloxyfop-methyl. Mol. wt. 375.7 M.f. C16H13ClF3NO4 Form Clear brown, odourless liquid. B.p. >280 ºC V.p. 0.328 mPa (25 ºC) KOW logP = 4.00 Henry 1.1  10-3 Pa m3 mol-1 (20 °C, calc.) S.g./density 1.372 (20 °C) Solubility In water 9.08 mg/l (25 ºC). In acetone, cyclohexanone, dichloromethane, ethanol, methanol, toluene, xylene >1 kg/l (20 ºC). Stability DT50 in water 100 d (pH5), 48 d (pH7), 52 h (pH9) (all 25°C). F.p. 186 °C

Haloxyfop-P COMMERCIALISATION
History The methyl ester reported by Bayer S.A. (M. C. Botte et al., Proc. 15th Columa Conf., 1992, 1, 397) and introduced by DowElanco (now Dow AgroSciences). Manufacturers Dow AgroSciences

Haloxyfop-P APPLICATIONS
Biochemistry Fatty acid synthesis inhibitor, by inhibition of acetyl CoA carboxylase (ACCase). Mode of action Haloxyfop-P-methyl is a selective herbicide, absorbed by the foliage and roots, and hydrolysed to haloxyfop-P, which is translocated to meristematic tissues, and inhibits their growth. Uses Haloxyfop-P-methyl is used post-emergence for control of annual and perennial grasses in sugar beet, fodder beet, oilseed rape, potatoes, leaf vegetables, onions, flax, sunflowers, soya beans, vines, strawberries, and other crops. Applied at 52-104 g a.e./ha. Formulation types EC.

haloxyfop-P-methyl
Selected products: 'Gallant Super' (Dow AgroSciences)

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