... -2,4-diamineChemical Abstracts name: N-(1,1-dimethylethyl)-N'-ethyl-6-(methylthio)-1,3,5-triazine-2,4-diaminePHYSICAL CHEMISTRYComposition ... Uses: Used pre-emergence in winter cereals, at 1-2 kg a.i./ha, to control blackgrass and ... : LC50 (96 h) for rainbow trout 1.1, bluegill sunfish 1.3, carp 1.4.Daphnia: LC50 (48 h) 2. ... aquatic spp.: EC50 (48 h) for Quahog clam 5.6 mg/l.Bees: Not toxic to bees. LD50 ( ...