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AR - 0757 TO XICITY TO AQUATIC PLANTS TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR226-1982 CC: H.

JEFFERSON MEDICAL COLLEGE of THOMAS JEFFERSON UNIVERSITY h < Daniel Baugh Institute Department of Anatomy O ffic e o f the Director and Chairman Philadelphia, 19107 (215) 928-7820 V.

A R 226 'C o ' Oral Teratology Study of FC-95 in Rats Experiment No.: Conducted At: Dosing Period: Study Director: 0680TR0008 Safety Evaluation Laboratory Riker Laboratories, Inc.

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE_________________________________________________ Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or FM-3422. (1-Octanesulfonamide, N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS #1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity: The limited water solubility of this material prohibited a definitive determination of the aquatic toxicity.

AfL ASL6 - 07A 3 ACUTE TO XIC ITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

M <256 _ 0 9 1 3 MICROBIOS MICROTOX TO XICITY TEST TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FX-3103. (1Octanesulfonic acid) (CAS # 2795-39-3).

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R*082 REV. i*<J cstaiushio hoi E. [ . du Pont de;ncNorpeo*mato( ours & C o m pany Wilm ington.

f t RjUCt O50< ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanoic acid; may also be referred to as PFOA, FC26, or FX-1001.

% FOR DU PONT USE ONLY AR226-2935 Du Pont HLR 801-88 Study Title Skin Irritation Test in Rabbits o Author William J.

A R HHG - O &KQ ACUTE TO XICITY TO FISH TEST SUBSTANCE ______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonic acid) (CAS # 2795-39-3) Remarks: The 3M production lot number was 1-2303.

M <6 - 0 7 5 8 EFFECT OF DEGRADATION ON FOAMING TEST SUBSTANCE________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203A or FC203 NFP. (1-Octanesulfonic acid) (CAS # 2795-39-3).