Title: Terbacil
CAS Registry Number: 5902-51-2
CAS Name: 5-Chloro-3-(1,1-dimethylethyl)-6-methyl-2,4(1H,3H)-pyrimidinedione
Additional Names: 3-tert-butyl-5-chloro-6-methyluracil
Manufacturers' Codes: Du Pont Herbicide 732
Trademarks: Sinbar (DuPont)
Molecular Formula: C9H13ClN2O2
Molecular Weight: 216.66
Percent Composition: C 49.89%, H 6.05%, Cl 16.36%, N 12.93%, O 14.77%
Literature References: Prepn: Loux, US 3235357 (1966 to du Pont). Herbicidal activity and physical properties: G. D. Hill, Jr. et al., 2nd Symp. New Herbic. 1965, 313, C.A. 66, 18234b (1967). Metabolism and mode of action: Herholdt, Diss. Abstr. Int. B 30, 1978 (1969).
Properties: Crystals, mp 175-177°. Soly in water at 25°: 710 ppm. Sol in DMF, dimethylacetamide, cyclohexanone; moderately sol in methyl isobutyl ketone, butyl acetate, xylene. Approx. LD orally in rats: >5000 mg/kg (Hill).
Melting point: mp 175-177°
Toxicity data: Approx. LD orally in rats: >5000 mg/kg (Hill)
Use: Herbicide. |