AR 226 - 076 ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) JESTSUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-783. (1Octanesulfonic acid) (CAS # 2795-393).

FROM PAUI- R WATKir45 iIS99 - 1973) DAp4A i-AT14AM (1808 - 10741 PHONC GnLLA.ua-n V F Ir F SE.RS rowt.. 3U,TE %BOO :..Oo

CHRONIC TOXICITY TO FISH TEST SUB TANCE Identity:N-ethylperfluorooctasnuelfonamidoethanolm;ay also be 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 uncharacterizedpurity.The laboratoryconductingthe study refersto N-ETFOSE Alcoholas "78.01".

BIOSEARCH.INC.

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredto as PFOS, FC-95, or as a component of FC-600. (1-Octanesulfoniaccid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium saltC,AS # 2795-39-3) Remarks: The 3M productionlotnumber was notnoted.

Confirmation that there is no current alternative to TFA for peptide synthetic process Trifluoroacetic acid (TFA) is an essential reagent for the peptide synthesis process, either in liquid or solidphase fashion.

AR226-1974 > ss VQ!

27-CV-10-28862 Filed in Fourth Judicial Dist ict Court 11/17/2017 6:25 PM Hennepin Co inty, MN ORGANIC FLUORINE COMPOUNDS IN BLOOD CHRONOLOGY AU6UST 22, 1975 AUGUST 25, 1975 SEPTEMBER 17-21, 1975 * DR.

nterottice corressonvence S00 ---- Magust 20, 1-- 975 August 20, 1975 S~UuBIbEjeCtc:t.

AR226-1971 PERSOMM.

/\RXl(rOl93 Submitted to : BIO SEA RC H , INC.

A h * 2.6 - 0 7 S Z ACUTE TOXICITY TO FISH (RAINBOW TROUT) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206 or L3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

B IO D EG R A D A T IO N (301E) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may a lso be referred to a s P F O S , FC -95, or a s a com ponent of FC -3017. (1Octanesulfonic a d d ) (C A S # 2795-39-3).

RI KER LABORATORI ES.

MILITARY SPECIFICATION 24385F AQUEOUS FILM FORMING FOAM (AFFF) CONCENTRATE ISSUE: The current military specification for firefighting foams mandates the use of fluorinated chemicals that are harmful to military personnel and the environment.