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AR226-2765 FOR DU POKT USE ONLY Copies to: E. I. 4u Pone de Nemoura and Company Haskeli Laboratory for Toxicology and Induai-rlal Medicine Elkton ;Road, Newark, Delaware J9711 HASKELL LABORATORRYEPORT NO. 329-81 Material Occanoic acid, T e s t e d H a s k e l l penCadecafluoro-, o~ 12,037 ammonium sale* Other Codes C=5---------- Scudy Iniclaced/Coapleced ----5/26/fil - 6/11/81------ > Material Sub IBB&b Departnen? flankfll Laboratory ORAL LP50 TSST IN HICE Procedure; The teat materials as a upenclon la corn oil, wa adalnlafcred by InCragasfcrIc Incubation in lingi* donee Co 6 groups of male and 6 group! of fanale young adult CDO-1 alee, 10 per group* The turvlving alee vere weighed and obaerved during a114-day recovery period and then sacrificed. The LD50 value was calculated!from ehe Boreallty data using the method of D. J. Finney.** I Reaulee: Male* Dose (na/ka) 4,0001 2,0001 1,000 750 500 250 Average Bod y Weight (a) 38 38 38 31 36 30 Suipe nlon ^ ) 1 5 1 0 k 3 2 1 Average Doae (oL) 1.01 0.76 0.95 0.76 0.89 0.75 Mortality Ratio 10/10 10/10 10/10 10/10 4/10 1/10 LD50*** 457 ng/kg Company S.n.z.d. D^ no. co^in TSCA CB Results; Dose (ma/kg) Average Body Weight () Suspension (X) Average Dose (roL) Mortality Ratio LD50*** Females: 4,000t 35 2,000t 34 1,000 33 15 0.94 10/10 457 ing/kg 10 0.67 10/10 4 0.82 10/10 750 25 3 0.62 10/10 500 33 250 24 2 0.82 4/10 1 0.60 1/10 Clinical Signs: Males: Stained and/or wet perineal area, weakness and weight loss in all surviving mice, eyee half closed at 1,000 and 250 mg/kg. Ruffled fur at 250 and 500 mg/kg. Acaxia at 1000, 500 and 250 ag/kg. Tremors at 500 and 750 mg/kg. All deaths occurred within 6 days after dosing. Females: Stained and/or wet perineal ares, weakness and weight loss in all surviving mice. Eyes half closed, ctalned face and tremors at 750 mg/kg. Acaxia at 500 mg/kg. Ruffled fur at 750 and 250 mg/kg. All deaths occurred within 7 days after dosing. Summary; Ammonium perfluorooctanoate is moderately toxic when administered orally to young adult CD-1 male and female mice; its LD50 for males and feoiales is 457 mg/kg of body weight. Clinical signs included: stained and/or wet perinea' area, ataxia, tremors, weakness, ruffled fur, eyes half-closed and weight loss. All deaths occurred within 7 days after dosing. Finney, D. J,, Probit Analysis, 3rd Ed., 1971, Cambridge University Press. 2 - CoH'psr.'/ SanWsed. Dcs^ no confab TSC^ CEs; *** 95X Confidence Limits; Males: Lower: Upper: Slope: 344 ng/kg 560 ng/kg 6. 6 Females: Lower: Upper; Slope ; 344 ng/kg 560 ag/kg 6.6 4000 LD50 and 2000 daca due mg/kg to dose levels male and female were not calculated in limitations of computer. Report by: u L M ^ / John A. Hall Technician Reviewed by; Study Director JAH.-jrg Date Issued; June 17, 1981 ''Report No. 329-81 "~uerald ^^Jy Approved by: Chief, -c^i_..l ^. L. Kenne4y Acute Investigations Section - 3 ^con^. "T^0SC^ Sa^10035 COlftP5^