Title: Alachlor
CAS Registry Number: 15972-60-8
CAS Name: 2-Chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide
Additional Names: 2-chloro-2¢,6¢-diethyl-N-(methoxymethyl)acetanilide; metachlor
Manufacturers' Codes: CP-50144
Trademarks: Lasso (Monsanto); Alanex (Makhteshim-Agan)
Molecular Formula: C14H20ClNO2
Molecular Weight: 269.77
Percent Composition: C 62.33%, H 7.47%, Cl 13.14%, N 5.19%, O 11.86%
Literature References: Pre-emergence herbicide. Prepn: NL 6602564 (1967 to Monsanto), C.A. 67, 99832r (1967). Activity: D. M. Evans, Chem. Ind. (London) 1969, 615. Soil degradn: R. S. Hargrove, M. G. Merkle, Weed Sci. 19, 652 (1971). Mechanism of action: L. M. Deal, F. D. Hess, ibid. 28, 168 (1980).
Properties: Cryst solid, mp 40-41°. d2515.6 1.133. Soly in water at 23°: 140 mg/l. Sol in ether, acetone, benzene, ethanol, ethyl acetate. Hydrolyzed under strong acid or alkaline conditions. LD50 orally in rats: 1200 mg/kg (Evans).
Melting point: mp 40-41°
Density: d2515.6 1.133
Toxicity data: LD50 orally in rats: 1200 mg/kg (Evans)
Use: Herbicide. |