Haloxyfop-p-methyl

Common name 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] 

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

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