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CENTRAL ANALYTICAL LABORATORY Report No. ---@219 -----------Date--- --May-- 16,- 1978 ------ Subject: F C-143 Analysis of IRDC 137-090 Samples Requestor: Dept. Name ---T,(Z4iCQlggY- Request No. ------ Dated -------- Report: Proj. No._2121,LU004 Serum and livers from IRDC study 137-090 (90 day subacute rhesus monkey toxicity with FC-143) were received for analysis of FC-143 content. Monke@p Dose Survival Serum PPM Liver ppm Liver total_v_l 7362M 0 7386F 0 yes 0.05 3 yes 1 0.07 5 7364M 3 mg/kg/day yes 7366M 01 yes 7384F of yes 7385F to yes 53 3 48 - 65 7 50 250 - 350 - 7363M 10 mg/kg/day yes 7458M yes 7328F yes 7383F yes 7367M 30 mg/kg/day no 7 4 5 5,L4 it yes 7382F if no 7387F it no 45 9 71 79 71 10 - 125 145 60 - 80 - 125 600 - 750 8000 400 0 7500 9000 7456M 100 mg/kg/day no 7381F no (D M = male, F female - 100 - 325 -- 6000 20000 A.R. #t)919 2 14ay 16, 1978 Altliougli no effects (preliminary observation) were seen during the 90 day rat study at 10 - 1000 ppm FC-143, the monkeys at the higher dosage levels were adversely affected; however, the monkeys were studied at approximately 100 times greater concentration than the rats. Note that both male and female monkeys accumulate FC-143 to about the same extent whereas with rats, only the male was found to contain higli levels of FC-143. It is interesting to speculate regarding the conclusion of Prof. Singer's latest study with perfluorooctanoic acid. He used a female rat and found rapid excretion of the compound. has lie also studied a male rat to verify either his female study or would tiie results agree with the IRDC (137-089)study? one obvious question, wliat is the difference acid, ammonium salt and FC-143? in toxicity of octanoic /jz c:H.E. J.D. B.W. R.A. F.A. D.G. Preier LaZerte Nippoldt Prokop Ubel Welblen 201-IS 236-1 201-lS 236-3B 220-2E 201-lS n Belisle