Repeat Application 28 Day Percutaneous Absorption Study with T-2618CoC in Albino Rabbits Experiment No.: Conducted At: Dates Conducted: Conducted By: 09790ABO485 Safety Evaluation Laboratory Riker Laboratories, Inc.

pR6-0BEE-25 STUDY SUMMARY FOR WORK PERFORMED DURING 1977-1979 EST SUBSTANCE. -- ---- Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8- heptadecafiuoro-, potassium salt, CAS #2795-39-3) Remarks field: The test substance is a white powder of uncharacterized purity.

AR226 0357 CHRONIC TOXICITY TO FISH TEST SUBSTANCE Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as 1N,-1E,t2,F2O,S3,E34A,l4c,o5h,o5l,6o,r6,F7M.-73,482,82,.8-(h1e-ptOacdteacnaefsluulofron-Na-m(i2d-eh,ydNr-oextyheytlh-yl)-, CAS # 1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity.

ARns-0lqy PRE-1976AETNTVAICRHOMNEMNETNTTAOLLSETTUTDEIRESTOONC.PAEUREFRLUDOARTOEODCMTAAYNE4,S2U00L0F:ONATES /- 2-- 3= Data from Fathead Minnow Study on FC-93 (25% NH4 salt of PFOSinIPA and water), 3M pErnovviirdoendmetnotEaPlAL)aboratory, Aug. 2, 1974.

: ARz26 -02% International Research and Development Corporation SPONSOR: 34 Company COMPOUND: FH-3422 SUBJECT: Ninety Day Subacute Rat | Toxicity Study

BACK TO MAIN SOIL ADSORPTION (METHOD DEVELOPMENT) TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC-116, FC-126, FC-169, or FC-143.

Copies to: E.

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component of FC-206 or L3243. (1-Octanesulfoniacid)(CAS # 2795-39-3).

AR226-3330 TRipmP Copy No. \^) _ Distribution - Last Page FC-143 IN THE M.

I MICROBIAL INHIBITION (DEHYDROGENASE ACTIVITY TEST) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonawthei,ch may alsobe referretdoas PFOS, FC-95,oras a component ofFC-203.

BIOACCUMULATION TEST SUBSTANCE Identity:N-EthylperfluorooctanesIufonamide;may also be referredto as U1464, ETFOSA, ETPOSA, F-6309, or FX-12. (1Octanesulfonamide,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-ethylC-A,S # 4151-50-2) Remarks: Materialisa white solidofuncharacterizedpurity.

AR 226 0793 ASGUEMNMCAYRYFOFRORMIWLOITRAKRYPTEERCFHONROMLEODGFYOARNTDHPERGOECRUMRAENMEGNOTVEORNNFMIERNET EXTINGUISHING FOAM COMPOUNDS FROM MULTIPLE COMPANIES TEST SUBSTANCE Identity: AbemirexfteurrreedcotnotaaisniPnFgOSPe,rfFiCu-o9r5o,ocotranaessualfcoonmaptoe,newnhtiochf FmCa-y20a6ls.o (1-Octanesuifonic acid) (CAS # 2795-39-3).

IN VITRO MICROBIOLOGICAL @FLTTAGENICITY ASSAYS OF THREE 3M COMPANY COMPOUNDS Final Report April 1978 By: Vincent F.

lo Submitted to: BIOSEARCH, INC.

: mteratice Correspondence S00 t C:iHe .E.