2685. Cyanazine

Nomenclature

CAS number: 21725-46-2
2-[[4-Chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitrile; 2-[[4-chloro-6-(ethylamino)-s-triazin-2-yl]amino]-2-methylpropionitrile; SD-15418; WL-19805; DW-3418; Bladex (Shell); Fortrol (Shell).
C9H13ClN6; mol wt 240.69.
C 44.91%, H 5.44%, Cl 14.73%, N 34.92%.

Description and references

Selective pre-emergence herbicide. Prepn: GB 1132306; W. Schwarze, US 3505325 (1968, 1970 both to Degussa). Activity: T. Chapman et al., Proc. 9th Br. Weed Control Conf. 2, 1018 (1968). Metabolism: J. V. Crayford, D. H. Hutson, Pestic. Biochem. Physiol. 2, 295 (1975). Persistence in soil: J. T. Majka, T. L. Lavy, Weed Sci. 25, 401 (1977).

Chemical structure

Properties

White crystals, mp 167.5-169°. Vapor pressure at 20°: 1.6 × 10-9 mmHg. Soly in water at 25°: 171 mg/l. Soly at 25° (g/l): benzene 15, chloroform 210, ethanol 45, hexane 15. LD50 in rats, mice (mg/kg): 182, 380 orally (Chapman).

Use

Herbicide.