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36 96-h LC50 Test Stage or Temp 95% Cl organism wt (g) (C) (ug/L) Rainbow trout 1.5 13 140 122-161 Channel catfish 0.7 18 240 110-550 Bluegill 1.1 18 320 142-735 Redear sunfish 2.5 18 < 140 ENDOSULFAN Chemical Name: 6,7,8,9, 10, 1 0-Hexachloro- 1,5,5a,6,9,9a-hexahydro-6,9-methano-2, 4,3- benzodioxathiepin-3-oxide Alternate Names: CAS 115-29-7, Chlorothiepin, Cyclo- dan, ENT-23979, FMC-5462, HOE-2671, Insecto- phene, Kop-Thiodan, Malix, Thifor, Thimul, Thiodan, Thionex Principal Use: Insecticide Sample Description: Technical material, 96% SUMMARY OF ACUTE TOXICITY 96-h LC50 Test Stage or Temp 95% Cl organism _ wt (g) (C) (µg/L) G.lacustris M 21 5.8 4.1-8.1 Pteronarcys YC2 15 2.3 1.6-3.3 Rainbow trout 1.3 13 1.4 1.2.1.6 Fathead minnow 0.7 18 1.5 1.1-2.0 Channel catfish 1.7 18 1.5 1.3-1.7 Bluegill 1.0 18 1.2 0.9-1.7 ENDOTHALL Chemical Name: 7-Oxabyclo (2.2.1) heptane-2,3-dicar= boxylic acid Alternate Names: Accelerate, Aquathol, CAS 129-67- 9, Des-i-cate, Endothal, Herbicide 272, Herbicide 273, Herbicide 282, Herbicide 283, Hydout, Hydro- thol, Niagrathal, Tri-Endothal Principal Use: Herbicide Sample Description: Aquathol K, 40.3%1; copper endo- thall, 25%1; Des-i-cate, 5.5%'; Herbicide 282,67.9%1; Hydrathol 47, 66.7%'; Hydrothol 191, 53%6; potas- sium endothall, 40.3%' SUMMARY OF ACUTE TOXICITY 96-h LC50 Test Stage or Temp 95% Cl organism wt (g) (C) (mg/L) Coho salmon' 1.4 13 > 100 Rainbow trout' 1.2 13 230 187-283 Channel catfish' 0.4 12 > 150 Bluegill' 1.3 22 343 308-383 Rainbow trout' 1.2 13 0.14 0.08-0.24 Green sunfish' 1.1 18 1.3 1.00-1.80 Bluegill' 1.2 18 3.33 2.51-4.40 Rainbow trout' 2.0 13 0.31 Rainbow trout' 1.2 13 0.98 Bluegill' 0.5 24 1.20 G.fasciatus' M 15 0.51 0.28.0.95 G.lacustrW M 21 0.50 0.37-0.67 Palaemonetes' M 21 0.05 0.02-0.12 Pteronarcys' YC2 15 3.258 Cutthroat trout' 1.0 10 0.18 0.12-0.27 Rainbow trout' 1.2 13 0.56 Fathead minnow' 0.6 18 0.75