WATER SOLUBILITY TEST SUBSTANCE Identity:N-methylperfluorooctanseulfonamidoethanolm;ay alsobe referredtoas N-MEFOSE Alcohol,FC-790, or FM-3925. (1Octanesulfonamide,N-methyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-(2-hydroxyethyClA)S-,# 24448-09-7) 'Remarks: Materialisan off-whitew,axy solid.Sample was taken from 3M lotnumber 505.

Submitted to: BIOSEARCH, INC.

InternatioRneaslearcahndDevelopmenCtorporation SPONSOR: C OL.1P 0 U'-.

BIODEGRADATION TEST SUBSTANCE Identity:Perfluorodecanesulfonataem,monium salt;may alsobe referred toas PFDS, FC-120,or3M Sample J2905-1.(1-Decanesulfonic acid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10heneicosafluoroa-m,monium saltC,AS # 67906-42-7) Remarks: Test sample isa mixtureofthetestsubstanceinwaterand butylcellosolv(eappmximately25% testsubstance,37.5% butyl cellosolvaend 37.5% water).Allvaluesreportedrelatetothismixture.

InternatioRneaslearcahndDevelopmenCtorporation SPONSOR: TEST MATERIAL: SUBJECT: 3M Company Fluorad Flucrochemical FC-143 Acute Oral Toxicity (LD Study in Rats. 50 Wilson P Dean, B.A.

CAS Number 307-35-7 3M Company Voluntary Use and Exposure Information Profile Perfluorooctanesulfonyl fluoride (POSF) 1.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonicacid)(CAS # 2795-39-3) Remarks: The 3M productionlotnumber was 1-2303.

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FINAL REPORT Ep2i2d0e-m6iWo-l0og8y, Medical Department 3M Company St.