Title: Pirimicarb
CAS Registry Number: 23103-98-2
CAS Name: Dimethylcarbamic acid 2-(dimethylamino)-5,6-dimethyl-4-pyrimidinyl ester
Additional Names: 2-(dimethylamino)-5,6-dimethyl-4-pyrimidinyl dimethylcarbamate; 5,6-dimethyl-2-dimethylamino-4-dimethylcarbamoyloxypyrimidine
Manufacturers' Codes: PP-062; ENT-27766
Trademarks: Aphox (Zeneca); Fernos (Zeneca); Pirimor (Syngenta)
Molecular Formula: C11H18N4O2
Molecular Weight: 238.29
Percent Composition: C 55.44%, H 7.61%, N 23.51%, O 13.43%
Literature References: Selective aphicide. Prepn: F. L. C. Baranyovits et al., ZA 6701588; eidem, US 3493574 (1968, 1970 to ICI). Activity: F. L. C. Baranyovits, R. Ghosh, Chem. Ind. (London) 1969, 1018. Degradn in soil: I. R. Hill, ACS Symp. Ser. 29, 358 (1976). GLC analysis: P. D. Bland, J. Assoc. Off. Anal. Chem. 64, 1315 (1981).
Properties: Crystalline solid, mp 90.5°. Vapor pressure at 30°: 3´10-5 mm Hg. Soly in water at 25°: 2.7 g/l. Sol in most organic solvents. Dec by prolonged boiling with acids or alkali. Aq solns are unstable to light. LD50 orally in female rats: 147 (mg/kg) (Baranyovits, Ghosh).
Melting point: mp 90.5°
Toxicity data: LD50 orally in female rats: 147 (mg/kg) (Baranyovits, Ghosh)
Use: Insecticide. |