Selective herbicide for control of wild oats in wheat. Prepn: M. W. Harman, J. J. D'Amico, US 3330821 (1967 to Monsanto). Herbicidal activity: R. Grover et al., Weed Res. 19, 363 (1979). Mutagenic evaluation in vitro (Ames Test): F. De Lorenzo et al., Cancer Res. 38, 13 (1978); G. R. Douglas et al., Mutat. Res. 85, 45 (1981). Soil persistence: A. E. Smith, B. J. Hayden, Bull. Environ. Contam. Toxicol. 29, 240 (1982). Field studies for pre-emergent use: T. G. Reeves, C. L. Touhey, Aust. J. Exp. Agric. Anim. Husb. 12, 55 (1972); E. M. Randall, R. H. Jarvis, Exp. Husb. 38, 32 (1982); post-emergent use: R. P. Garnett, Aspects Appl. Biol. 13, 73 (1980). Determn in soils by GC: A. E. Smith, J. Chromatogr. 97, 103 (1974); by HPLC: A. Pena Heras, F. Sanchez-Rasero, ibid. 358, 302 (1986). Review of genotoxicity: C. E. Healy et al., Int. J. Toxicol. 22, 233-251 (2003).