Fenoxaprop-P-Ethyl ̲
Introduction: Fenoxaprop-p-ethyl is used for post-emergence controlling 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.
Common name: Fenoxaprop-P-Ethyl
Another name: UNII-54CSW9U08K; 54CSW9U08K; Ethyl (2R)-(+)-2-[4-(6- chlorobenzoxazol-2-yloxy)phenoxy]propionate; Ethyl (2R)-2-[4-[(6-chloro-1,3- benzoxazol-2-yl)oxy]phenoxy]propanoate; etc.
Chemical name: (R)-2[4-[(6-chloro-2-benzoxazolyl)oxy]-phenoxy]-propanoic acid
Empirical formula: C18H16ClNO5
Structural formula:
Mol. Weight: 361.78 g/mol
CAS No.: 71283-80-2
Specifications
Leading Fenoxaprop-P-Ethyl supplier
Fenoxaprop-P-Ethyl 95% TC
Fenoxaprop-P-Ethyl 10% EC
Packing:
BULK PACKING
Powder: 25kg/Bag, 25kg/Drum, 50kg/Drum etc.
Liquid: 200L/Drum, 20L/Drum, 10L/Drum etc.
SMALL PACKING
Powder: 1kg/Alu bag, 500g/Alu bag, 200g/Alu bag, 100g/Alu bag, 50g/Alu bag, 15g/Alu bag etc.
Liquid: 5L/Drum, 1L/Bottle, 500ml/Bottle, 250ml/Bottle, 100ml/Bottle, 50ml/Bottle etc.
Customerized packing label
Fenoxaprop-P-Ethyl FAO standard
Professional registration
HAZARDS IDENTIFICATION
Hazard statement(s)
H317 (77.88%): May cause an allergic skin reaction.
H400 (100%): Very toxic to aquatic life.
H410 (51.92%): Very toxic to aquatic life with long lasting effects.
Precautionary statement(s)
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P272: Contaminated work clothing should not be allowed out of the workplace.
P273: Avoid release to the environment.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352: IF ON SKIN: wash with plenty of water.
P321: Specific treatment (see ... on this label).
P333+P313: IF SKIN irritation or rash occurs: Get medical advice/attention.
P363: Wash contaminated clothing before reuse.
P391: Collect spillage.
P501: Dispose of contents/container to an approved waste disposal plant.
Supplemental Hazard Statements: none.
MAMMALIAN TOXICOLOGY
Acute toxicity: 1) Acute oral LD50 for rats is >3150 a.i.mg/kg. 2) Acute dermal LD50 for rats is >2000 a.i.mg/kg. 3) Acute inhalation toxicity LC50 (4 h) for rats is >1.22 a.i.mg/L. 4) Skin irritation: Non-irritating to skin (rabbits). 5) Eye irritation: Non-irritating to eyes (rabbits). 6) Skin sensitization for guinea pig: Non-sensitizing (Buehler test).
NOEL: (2 y) for rats is 1.6 mg/kg/day; (2 y) for mice is 5.7 mg/kg/day. Other Not genotoxic.
ADI 0-0.01 mg/kg b.w.
Classification:
WHO Classification: NL (Not listed)
EC Risk Classification: Xn - Harmful: R43; N - Dangerous for the environment: R51/53
US EPA Classification (formulation): Not available
ECOTOXICOLOGY
Effect on birds: Acute oral LD50 for Japanese quail is >2000 a.i.mg/kg. Effect on fish: Acute LC50 (96 h) for Bluegill sunfish is 0.19 a.i.mg/l. Effects on aquatic invertebrates: Acute EC50 (48 h) for Daphnia magna is >1.06 a.i.mg/l. Effects on algae: Acute 72 hour EC50 for Scenedemus subspicatus is 0.54 a.i.mg/l. Effects on bees: contact acute 48 hour LD50 is >36.4 a.i.g/bee, oral acute 48 hour LD50 is >200 a.i.g/bee. Effects on earthworms: Acute 14 day LC50 is >500 a.i.mg/kg.
ENVIRONMENTAL FATE
Plants In plants, fenoxaprop-ethyl is metabolised via fenoxaprop to 6-chloro-2,3- dihydrobenzoxazol-2-one. Soil/Environment In soil, fenoxaprop-ethyl is rapidly hydrolysed to fenoxaprop; DT50 1-10 d.
Usage: Fenoxaprop-P-Ethyl was introduced by Hoechst AG (now Bayer CropScience). It is a post-emergence herbicide used to control annual and perennial grasses.
Application: 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.
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