AR226-2782 FOR DP roar USE ONLY Copies to:!

-2- Absorption of FC-143-14 C In Rats After a Single Or&) 0060 December 28* 1979 WC#\ JAN I Pi1'980 Conducted at: During: Conducted by; Report by: Reviewed by: Riker Laboratorl*s,Inc.

ALGICIDAL ACTIVITY TEST SUBSTANCE IdentityA:mixturceontaininpgerfluorooctanesulfownhaitceh,may alsobe referredto as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonicacid)(CAS # 2795-39-3).

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

2-A7 KV. ).:-7S AR226-3332 isra'uSticua; E.

PHOTODEGRADATION (SOIL) TEST SUBSTANCE Identity:N-ethylperfluorooctanseulfonamidoethanolm;ay alsobe referredto as N-ETFOSE Alcoholor 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: Materialisan off-whitew,axy solidof uncharacterizepdurity.

BIOSEARCH, INC.

AR R26 0787 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) IESTSUBSTANCE ~~~ 0000 Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206 or L- 3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

AR 226 -- 0795 ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE Identity: MreifxetrurreedctoontaasinPiFnOgSP,erFfCl-u9o5r,ooocrtaansesaulcfoomnpatoen,enwhtiocfhFmCa-2y0a6lAs.o b(e1Octanesulfonic acid) (CAS # 2795-39-3).

SOIL ADSORPTION (METHOD DEVELOPMENT / PILOT STUDIES) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: Sample was radiolabeled (isotope and labeling position not specified).

Synthesis and Characterization of FC-95- 14 c November 2, 1979 Conducted at: During: Synthesis Conducted by: Specific Activity and Radiochemical Purity Determination by: Commercial Chemicals Division and Riker Laboratories, Inc. 3M St.

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-Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO INVERTEBRATES TEST SUBSTANCE (FIDDLER CRAB) Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, oras a component ofFC-206 or L3243. (1-Octanesulfoniacid)(CAS # 2795-39-3).

AR2260319 SOIL ADSORPTION (METHOD DEVELOPMENT / PILOT STUDIES) 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.

SOIL ADSORPTION TEST SUBSTANCE Identity: N-methylperfluorooctane sulfonamidoethanol; may also be referred to as N-MeFOSE Alcohol, FC-790, or FM-3925. (1Octanesulfonamide, N-methyl-1,1,2,2,3,3,4.4,6,5,6,6,7,7,8.8,8heptadecafluoro-N-(2-hydroxyethyi)-, CAS # 24448-09.7) Remarks: Material is an off-white, waxy solid.