6 all Extent and Route of Excretion of Total Carbon-14 in Pregnant Rats 14 After a Single Oral Dose of Ammonium C-Perfluorooctanoate June 30, 1983 Conducted At: During: Conducted by: Riker Laboratories, Subsidiary of 3m St.

Sr aD E. 1. 0u PoNT DE NEMOURS 5 COMPANY WILMINGTON, DELAWARE 19898 (carbon copies Listes on page 5 AR R86 1494 - TOXICOLGGY AND INDUSTRIAL MEDICINE May 6, 1981 g5 g33 PERSONAL CONFIDENTIAL &H 38 3 55 MEMO TO: HP.PD,E.

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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| / RReeppoorrtt NNuummbbeerr:: HM--660011 l DDaattee:: MMaarrcchh 1122,, 11938800 oOrraall RRaannggeeffiinnddeerr SSttuuddyy ooff TT--22939989CCeOCC in in Pregnant Pregnant Rate Ra~s .

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanesulfonyflluoridem;ay also be referredto as POSF, or FX-8. (1-Octanesulfonylfluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluCoArSo-#, 30735-7).

MICROBICS MICROTOX@ TOXICITY TEST TEST SUBSTANCE Identity:Perfluorooctanesulfonylamido(ethyl)acemtaytea;lso be referredtoas PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, or FC-109-X.

BIODEGRADATION (METHYLENE BLUE ACTIVE SUBSTANCE) TEST SUBSTANCE Identity:Perfluorooctanesulfonylamido(ethyl)acetmaatye;alsobe referredtoas PFOSAA, FC-128 oras the major component of FC-1 27, FC-129, FC-1 09, FC-1 09-X or Rl 904.

IN VITRO MICROBIOIDGICAL MUTAGENICITY OF 3t4 COMPANY'S COMPOUND T-3651 ASSAYS Final Report February 1985 V it I By: b&Ak:&@ Kathleen Okamoto, Microbiologist Microbial Genetics Department and ave@,6@, &C:t@7 Edward S.