&x6 ACUTE TO XICITY TO FISH (FATHEAD MINNOW) 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).

THE NEW YORK TIMES,:.

Z-4S REV 2 79 <mB> CONFIDENTIAL 5CC: B.

Internal Correspondence BACK TO MAIN Commercial Chemicals Analytical Report #245 To: M.

Oral Rangefinder Study of T-2999CoC in Pregnant Rabbits Experiment No. : Conducted At: Dosing Period: Study Director: 0680RB.0019 Safety Evaluation Laboratory Riker Laboratories, Inc.

Internal Correspondence 5| I tI i rI i V; To From: Subject: Date: D.

AR 2.6 _ 0779 EFFECT OF DEGRADATION ON FOAMING 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).

2-C5 P f * "V E . 1. d u P o n t d e N e m o u r s & C o m p a n y INCORPORATLC W i l m i n g t o n .

BIODEGRADATION TEST SUBSTANCE Identity: [2-(N-Ethylperfluorooctanesulfonamido) ethyl acrylate; may also be referred to as B1228, D-1, EtFOSEA, or FX-13. (2-Propenoic acid, 2[ethyl[heptadecafluorooctyl)sulfonyl]amino]ethyl ester, CAS # 423-825) Remarks: Material is an amber solid.

0% w ACUTE TO XIC ITY TO FISH (FATHEAD MINNOW ) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-602. (1Octanesulfonic acid) (CAS # 2795-39-3).

Internal Correspondence de: M.

r] (ss) 2=3 R236-03/0 IN VITRO MICROBIOLOGICAL MUTAGENICITY ASSAYS OF 3M COMPANY'S COMPOUND T-3609 Final Report September 1984 By: C U t ) Debra E.

AR.A3.6 - 07^6 A C T IV A T E D S L U D G E R E S P IR A T IO N IN H IBITIO N T E S T T E S T S U B S T A N C E ___________________________________________________ Identity: A mixture containing perfluorooctanesulfonate; m ay a lso be referred to a s P F O S , FC-95, or a s a com ponent of F C -2 0 3 C and L-5440. (1-Octanesulfonicacid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, C A S # 2795-39-3) R e m arks: The 3M production lot num ber w as 501.

A f L SLSL& _ C Q 2 Z ACU TE TO XICITY TO FISH (FATH EAD MINNOW ) T E ST SU B ST A N C E _______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFO S, FC-95, or as a component of FX-3106. (1Octanesulfonic add) (C A S # 2795-39-3).

PERSONAL AND CONFIDENTIAL AR226-1981 O.