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"^fe-26- f(,3 7 CENTRAL RESEARCH AND DEVELOPMENT DEPARTMENT HASKELL LABORATORY FOR TOXICOLOGY cc: ANO INDUSTRIAL MEDICINE .a* .V A 0. 3.

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PERFLUOROOCTANESULFONATE, POTASSIUM SALT (PFOS): A FLOW-THROUGH BIOCONCENTRATION TEST WITH THE BLUEGILL (Lepomis macrochirus) FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

Interoffice Correspondence cc : H.E.

Pathology and Toxlcotogy RHcar Laboratories, Inc.

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CHtl EHSR b It D I (55 IVD uy/iy `U ID: 44 N0.59 1/1 3M Specialty M aterials 3M Center SL Paul.

SRPT T-6295.8, T-6316.4, T-6868.2, T-7071.1, T-7132.1 DT15-B f t 3 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY Title: Comparative Molecular Biology of Perfluorooctanesulfonate (PFOS, T-6295), N-ethyl perfluorooctanesulfonamido ethanol (N-EtFOSE, T-6316), N-Ethyl perfluorooctanesulfonamide (N-EtFOSA, T-6868), Perfluorooctanesulfonamido acetate (FOSAA, T-7071), and/or Perfluorooctanesulfonamide (FOSA, T-7132) of in Rats and Guinea Pigs following Oral dosing.

PFOS: A PILOT REPRODUCTION STUDY WITH THE MALLARD FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

Toxicological Summary PFOS Dietary Chronic Definitive Reproductive Study: Northern Bobwhite Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro, potassium salt.