Structural Formula Vector Image
Title: Sulfosulfuron
CAS Registry Number: 141776-32-1
CAS Name: N-[[(4,6-Dimethoxy-2-pyrimidinyl)amino]carbonyl]-2-(ethylsulfonyl)imidazo[1,2-a]pyridine-3-sulfonamide
Additional Names: 1-(2-ethylsulfonylimidazol[1,2-a]pyridin-3-ylsulfonyl)-3-(4,6-dimethoxypyrimidin-2-yl)urea
Manufacturers' Codes: MON-37500
Trademarks: Maverick (Monsanto); Monitor (Monsanto); Sundance (Monsanto)
Molecular Formula: C16H18N6O7S2
Molecular Weight: 470.48
Percent Composition: C 40.85%, H 3.86%, N 17.86%, O 23.80%, S 13.63%
Literature References: Sulfonylurea herbicide to control grassy weeds in wheat. Prepn: Y. Ishida et al., EP 477808 (1992 to Takeda). Description of physical properties, toxicity and activity: S. K. Parrish et al., Brighton Crop Prot. Conf. - Weeds 1995, 57. Soil degradation: idem et al., ibid. 667. Field trial in winter wheat: R. E. Blackshaw, W. M. Hamman, Weed Technol. 12, 421 (1998). Absorption and translocation in grass species: B. L. S. Olson et al., Weed Sci. 47, 37 (1999).
Properties: White, odorless crystals, mp 201.1-201.7°. Soly in water (ppm): 18 (pH 5); 1627 (pH 7); 482 (pH 9). Vapor pressure: <10-6 Pa. Log P (octanol/water): <10. LD50 in rats (mg/kg): >5000 orally; >5000 dermally; LC50 (96 hr) in rainbow trout, carp (mg/l): >95, >91 (Parrish).
Melting point: mp 201.1-201.7°
Log P: Log P (octanol/water): <10
Toxicity data: LD50 in rats (mg/kg): >5000 orally; >5000 dermally; LC50 (96 hr) in rainbow trout, carp (mg/l): >95, >91 (Parrish)
Use: Herbicide.

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