... terbuthylazineIUPAC name: N2-tert-butyl-6-chloro-N4-ethyl-1,3,5-triazine-2,4-diamineChemical Abstracts name: 6- ... chloro-N-(1,1-dimethylethyl)-N'-ethyl-1,3,5-triazine-2,4-diamine PHYSICAL CHEMISTRYComposition: Tech. ... ppm.Fish: LC50 (96 h) for rainbow trout 3.8-4.6, bluegill sunfish 7.5, carp and ... and almost all within 48 h. A de-ethyl metabolite forms rapidly, followed by conjugates of products ...