Title:  Hexazinone 
CAS Registry Number:  51235-04-2 
CAS Name:  3-Cyclohexyl-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4(1H,3H)-dione 
Manufacturers' Codes:  DPX-3674 
Trademarks:  Velpar (DuPont) 
Molecular Formula:  C12H20N4O2 
Molecular Weight:  252.31 
Percent Composition:  C 57.12%, H 7.99%, N 22.21%, O 12.68% 
Literature References:  Broad spectrum, pre- and post-emergence herbicide effective against woody and herbaceous weeds.  Prepn:  NL 7307218; J. J. Fuchs, J. B. Wommack, US 3850924; K. Lin, US 3983116 (1973, 1974, 1976 all to Du Pont).  Herbicidal activity:  D. A. Allison, T. D. Joyce, Proc. Brit. Weed Control Conf., 1974, 279; J. D. Riggleman, Proc. South. Weed Sci. Soc. 31, 141 (1978).  Field trials:  S. J. B. Hay, R. G. Jones, Proc. Symp. Methods Weed Control 1977, 139; D. E. Yarborough et al., Weed Sci. 34, 723 (1986).  HPLC determn in soil and water:  D. C. Bouchard, T. L. Lavy, J. Chromatogr. 270, 396 (1983).  Residues in ground water:  D. G. Neary, South. J. Appl. For. 7, 217 (1983).  Retention and degradation in soil:  K. I. N. Jensen, E. R. Kimball, Bull. Environ. Contam. Toxicol. 38, 232 (1987). 
Properties:  White crystalline solid.  mp 97-100.5°.  Very soluble in water, 330 g/l at 25°.  LD50 orally in rats:  1690 mg/kg (Neary). 
Melting point:  mp 97-100.5° 
Toxicity data:  LD50 orally in rats:  1690 mg/kg (Neary) 
Use:  Herbicide.   |