fenoxaprop-P-ethyl 69g/l EW 10% EC 95% TC

タイトルまたは説明

NOMENCLATURE

fenoxaprop-P-ethyl

Chemical Abstracts name ethyl (R)**-[*-[(*-chloro**-benzoxazolyl)oxy]phenoxy]propanoate  

CAS RN [*********2]  Development codes Hoe *****0 (Hoechst); AE F*****0 (AgrEvo)  

fenoxaprop-P

Common name fenoxaprop-P (BSI, draft E-ISO, (m) draft F-ISO)

IUPAC name (R)**-[*-(*-chloro*1,*-benzoxazol**-yloxy)phenoxy]propionic acid; (R)**-[*-(*-chlorobenzoxazol**-yloxy)phenoxy]propionic acid  

Chemical Abstracts name (R)**-[*-[(*-chloro**-benzoxazolyl)oxy]phenoxy]propanoic acid  

CAS RN [**********0]  Development codes Hoe *****6 (Hoechst); AE F*****6 (AgrEvo)  

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.

ANALYSIS

Details on hplc method are available from  CropScience.  

MAMMALIAN TOXICOLOGY

fenoxaprop-P-ethyl

Oral Acute oral LD*0 for rats ********0, mice >***0 mg/kg.  Skin and eye Acute percutaneous LD*0 for rats >***0 mg/kg.  Inhalation LC*0 (4 h) for rats >1.**4 mg/l air.  NOEL (*0 d) for rats 0.*5 mg/kg b.w. daily (*0 ppm), mice 1.4 mg/kg b.w. daily (*0 ppm), dogs *5.9 mg/kg b.w. daily (**0 ppm).  

ECOTOXICOLOGY

fenoxaprop-P-ethyl

Birds Acute oral LD*0 for bobwhite quail >***0 mg/kg.  Fish LC*0 (*6 h) for bluegill sunfish 0.*8, rainbow trout 0.*6 mg/l.  Daphnia LC*0 (*8 h) 0.*6 (pH 8.**8.4), 2.7 (pH 7.**7.8) (both mg/l).  Algae LC*0 (*2 h) for Scenedesmus subspicatus 0.*1 mg/l.  Bees LC*0 (contact) >**0 mg/bee; (feed) >***0 mg/bee.  Worms LC*0 (*4 d) for Eisenia foetida >***0 mg/kg soil.  

ENVIRONMENTAL FATE

Plants In plants, fenoxaprop-ethyl is metabolised via fenoxaprop to *-chloro*2,*-dihydrobenzoxazol**-one.  Soil/Environment In soil, fenoxaprop-ethyl is rapidly hydrolysed to fenoxaprop (A. E. Smith, J. Agric. Food Chem., ***5, *3, **3); DT*0 ***0 d.