Flufenacet
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- Category :
Agrochemicals/Herbicide
- CAS NO : 142459-58-3
- EC NO :
- Molecular Formula : C14H13F4N3O2S
- Main Specifications : 95%TC
- Synonyms : Acetamide, N-(4-fluorophenyl)-N-(1-methylethyl)-2-((5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy)-;Thiafluamide;4'-fluoro-N-isopropyl-2-[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yloxy]acetanilide;N-(4-fluorophenyl)-N-isopropyl-2-(5-(trifluoromethyl)-1,3,4-thiadiazol-2-yloxy)acetamide;N-(4-fluorophenyl)-N-(propan-2-yl)-2-{[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy}acetamide;
Package: 25kgs per fiber drum
Uses : Flufenacet is applied to the soil surface or incorporated preemergence in field corn, corn grown for silage, or soybeans to control certain annual grasses and broadleaf weeds.
Molecular Structure:

Product description:
Title: Flufenacet
CAS Registry Number: 142459-58-3
CAS Name: N-(4-Fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide
Additional Names: N-isopropyl-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)-(4-fluorooxyacetanilide)
Manufacturers' Codes: BAY FOE-5043; FOE-5043
Trademarks: Define (Bayer CropSci.)
Molecular Formula: C14H13F4N3O2S
Molecular Weight: 363.33
Percent Composition: C 46.28%, H 3.61%, F 20.92%, N 11.57%, O 8.81%, S 8.83%
Literature References: Oxyacetamide herbicide. Prepn: H. Förster et al., DE 3821600; eidem, US 4968342 (1989, 1990 both to Bayer). Ecotoxicological profile: T. Hall, Pflanzenschutz-Nachr. Bayer (Engl. Ed.) 50, 187 (1997). Series of articles on chemical and biological properties, determn and field trials: ibid. 105-236. Review of properties and grass control in crops: R. Deege et al., Brighton Crop Prot. Conf. - Weeds 1995, 43.
Properties: White to tan solid, mp 75-77°. Does not dissociate. Soly in water at 25° (mg/l): 56 pH 4; 56 pH 7; 54 pH 9. Log P (octanol/water): 3.2. Vapor pressure at 20°: 9.0 10-5 Pa. LD50 in rats (mg/kg): 589-1617 orally; >2000 dermally. LD50 orally in mice, bobwhite quail, mallard duck: 1331-1756, 1608, >2000 mg/kg. LC50 in sunfish, rainbow trout, sheepshead minnow: 2.1-2.4, 3.5-5.8, 3.3 mg/l (Hall).
Melting point: mp 75-77°
Log P: Log P (octanol/water): 3.2
Toxicity data: LD50 in rats (mg/kg): 589-1617 orally; >2000 dermally; LD50 orally in mice, bobwhite quail, mallard duck: 1331-1756, 1608, >2000 mg/kg; LC50 in sunfish, rainbow trout, sheepshead minnow: 2.1-2.4, 3.5-5.8, 3.3 mg/l (Hall)
Use: Pre-emergent herbicide.
Flufenacet is applied to the soil surface or incorporated preemergence in field corn, corn grown for silage, or soybeans to control certain annual grasses and broadleaf weeds.