ARUG-0^3 BIOACCUMULATION (ANALYTICAL ONLY) TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, or FC-109-X.

AkH.3.& - 0273 ACUTE TOXICITY TO FISH (MUMMICHOG) TEST SUBSTANCE________________________________________ ___ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-780B. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR226-2865 K E.

FOR D PONT USE ONLY Copies to AR226-2898 E a I. du Pont de Nemours and Company Haskell Laboratory for Toxicology and Industrial Medicine Elkton Road, Newark, Delaware 19711 HASKELL LABORATORY REPORT NO. 352-81 MR NO Haskell N o .

M AS.6 - 0788 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (SCUD) T EST 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).

PpXrOH'ft International Research and Development Corporation SPONSOR: 3M Company COMPOUND: Fluorad Fluorochemical FC-143 SUBJECT: Ninety Day Subacute Rhesus Monkey Toxicity Study.

SUBMITTED BY: PREPARED BY: APPROVED BY: ARm-0503 E G & G, Bionomics Aquatic Toxicology Laboratory 790 Main Street Wareham, Massachusetts June, 1978 Brenda F.

AR226-3375 HASKELL LABORATORY Common Nam e: Ammonium Perfluorooctanoate (C-8) Chem ical N am e: O ctanoic acid, pentadecafluoro-, ammonium salt CAS Registry N o.: 3825-26-1 Chem ical Structure: O v Physical Properties: CF3-CF2-CF2-CF2-CF2-CF2-CF2-C -0^ N H 4^ ;^ Form : M olecular W eight: B oiling Point: M elting Point: D en sity : W hite powder 431 /Sublimes @ 110C --- --- ' .; ' i; /^ Community Exposure Guideline 0.0003 m g/m 3 (24-hour TW A) General Toxicity Ammonium perfluorooctanoate (C-8) has moderate acute oral toxicity w ith an LD50 in rats o f 470 m g/kgJ I M ^ | l 98 lb ).

AR&9.6 _ OSOO m ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206A. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR 226-035 SUMMARY OF HISTOPATHOLOGICAL EXAMINATIONS OF FATHEAD MINNOW (Pimephales promelas) EXPOSED TO 78.01 FOR 30 DAYS. p M - 3 V'Z"*-' RESEARCH REPORT SUBMITTED TO 3M COMPANY ST.

A R 30G -03: BIODEGRADATION TEST SUBSTANCE Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or FM-3422. (1-Octanesulfonamide, N-ethyl1,1l2,2,3.3,4)4 I5,5,6,6,7,7,8,8.8-heptadecafluoro-N-(2-hydroxyethyl)-I CAS #1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity.

M &Z6 - 0 7 2 9 ACUTE TOXICITY 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-206 or L3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

AR226-3382 HASKELL LABORATORY Common Name: Telomer B Citrate Urethane (TBCU) Chomir.al Name: Poly(difluoromethylene), alpha-fluoro-omega-(2-hydroxyethyl)-, ester with 2,15 -bis(carboxymethyl)-4,13-dioxo-3,14-dioxa-5,12-diazahexadecane1,2,15,16-tetracarboxylic acid CAS Registry No.: 65530-58-7 Chemical Structure: ,o Rf-- CH-2-- CH20-- O - C O CH_ O Il I * II Rf-- CH,-- CH,-- O-C -- C-O-C-NH I -(CH,,2)' 3 CH,, R-f-- CH_2-- CH20-- O -- C,, 0 where Rf = H r CF^~ CF2-- ^ F Physical Properties: Form: Molecular Weight: Boiling Point: Melting Point: Density: Brown solid Approximately 3200 (typical grade) 1.5 g/mL Recommended AEL 0.1 mg/m3 (8- and 12-hour TWA), respirable dust General Toxicity TBCU has very low acute oral toxicity with an ALD in the rat of 25 grams/kg (DuPont, 1976a).

/IR33S-OIS6 28 Day Percutaneous Absorption Study with FC-99 in Albino Rabbits Experiment No Conducted At: Dates Conducted: Conducted By: 0979AB0633 Safety Evaluation Laboratory Riker Laboratories, Inc.

ORlGlNW- AR1X.