Title: Triflusulfuron-methyl
CAS Registry Number: 126535-15-7
CAS Name: 2-[[[[[4-(Dimethylamino)-6-(2,2,2-trifluoroethoxy)-1,3,5-triazin-2-yl]amino]carbonyl]amino]sulfonyl]-3-methyl benzoic acid methyl ester
Manufacturers' Codes: DPX-66037
Trademarks: Debut (DuPont); Safari (DuPont); Upbeet (DuPont)
Molecular Formula: C17H19F3N6O6S
Molecular Weight: 492.43
Percent Composition: C 41.46%, H 3.89%, F 11.57%, N 17.07%, O 19.49%, S 6.51%
Literature References: Sulfonylurea herbicide for use in beets; acetolactate synthase inhibitor. Prepn: M. P. Moon, WO 8909214; idem, US 5090993 (1989, 1992 both to DuPont). Comprehensive description: K. A. Peeples et al., Brighton Crop Prot. Conf. - Weeds 1991, 25-30. Selectivity in sugar beets: V. A. Wittenbach et al., Pestic. Biochem. Physiol. 49, 72 (1994).
Properties: White solid, mp 160-163°. Log P (octanol/water pH 7) at 25°: 9.2. pKa 4.4. Soly in water at 25° (ppm): 1 (pH 3); 3 (pH 5); 110 (pH 7); 11000 (pH 9). LD50 orally in rats: >5000 mg/kg; dermally in rabbits: >2000 mg/kg (Peeples).
Melting point: mp 160-163°
pKa: pKa 4.4
Log P: Log P (octanol/water pH 7) at 25°: 9.2
Toxicity data: LD50 orally in rats: >5000 mg/kg; dermally in rabbits: >2000 mg/kg (Peeples)
Use: Herbicide. |