Bifenthrin(CAS RN 82657-04-3)

Common name Bifenthrin (BSI, ANSI, draft E-ISO); Bifenthrine ((f) draft F-ISO)
IUPAC name 2-methylbiphenyl-3-ylmethyl (Z)-(1RS,3RS)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate
Roth: 2-methylbiphenyl-3-ylmethyl (Z)-(1RS)-cis-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate
Chemical Abstracts name (2-methyl[1,1'-biphenyl]-3-yl)methyl 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate
CAS RN [82657-04-3]

PHYSICAL CHEMISTRY
Composition Material contains 97% cis- isomer, 3% trans- isomer.  Mol. wt. 422.9  M.f. C23H22ClF3O2  Form Viscous liquid; crystalline or waxy solid.  M.p. 68-70.6 °C  V.p. 0.024 mPa (25 ºC)  KOW logP >6  Henry 1.02  102 Pa m3 mol-1 (calc.)  S.g./density 1.210 (25 ºC)  Solubility In water <1 g/l. Soluble in acetone, chloroform, dichloromethane, diethyl ether, and toluene. Slightly soluble in heptane and methanol.  Stability Stable for 2 y at 25 ºC and 50 ºC (tech.). In natural daylight, DT50 255 d; stable 21 d at pH 5-9 (21 ºC).  F.p. 165 ºC (Tag open cup); 151 ºC (Pensky-Martens closed cup)

APPLICATIONS
Mode of action Contact and stomach action.
Uses Effective against a broad range of foliar pests, including Coleoptera, Diptera, Heteroptera, Homoptera, Lepidoptera and Orthoptera; it also controls some species of Acarina. Crops include cereals, citrus, cotton, fruit, grapes, ornamentals and vegetables. Rates range from 5 g a.i./ha against Aphididae in cereals to 45 g/ha against Aphididae and Lepidoptera in top fruit.
Formulation types 95%,97%TC 1%,2.5%,10%EC 4.5%,10%EW 10%FS 10%ME 10%SC