Study Title Characterization Study of PFOS, Primary Standard - Test Control Reference #TCR-00017-046 Phase: Solubility of PFOS in Octanol Data Requirement 40 CFR 160.105(b) Author Mark E.

BACK TO MAIN BIODEGRADATION (Pure Microbial Cultures) 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: The 3M production lot number was 217 (TN-A-2130).

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).

BACK TO MAIN TOXICITY TO AQUATIC PLANTS (Duckweed, Lemna gibba G3) 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 obtained from 3M production lot number 217.

BACK TO MAIN BIODEGRADATION (BOD/COD) 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, FC-109-X, FC-4351, or L-6778.

Katherine E.

m n < -o o ^ PFOS: A 48-HOUR STATIC ACUTE TOXICITY TEST WITH THE CLADOCERAN (.Daphnia magna) FINAL REPORT WILDLIFE INTERNATIONAL LTD.

A lU 76-o io G > - )3 T O X IC IT Y T O A Q U A T IC P L A N T S (E.G., A L G A E ) T E S T S U B S T A N C E __________________________________________________ Identity: Perfluorooctanesulfonate; m ay a lso be referred to a s P F O S or FC-95. (1-Octanesulfonicacid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, C A S # 2795-39-3) R e m a rk s field: The test substance is a white powder (3M Lot 583) of uncharacterized purity.

ARa%-olHl 3M MEDICAL DEPARTMANT CORPORATE TOXICOLOGY To: John Butenhoff Andrew Seacat From: Marvin Case Date: 5 April 2000 Subject: Liver Slide Review I have completed my microscopic review of the liver sections of the 14-week sacrifice rats on the PFOS chronic study.

CLIENT PRIVATE AF26-OI6I fk -- PROTOCOL TITLE: Range finding Cytotoxicity Assay of T-6292, T-6293, T-6294, T-6295 in R at Hepatocytes SRI Study No.

fR 226~36i{ HYDROLYSIS (ALKALINE) 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.

PFOA Attachments to Letter to C.

Pathology and Toxicology RMcar Laboratories, Inc.

i - ) 1 .i d ':l| i -i rj '"i ' i t ;VH3 [\7i i Corning Hazleton Inc.

BEST COPY AYAllABLE &R EaCi6EiIOV ED ,H Oral "--vngefinder Study of T-314 'CoC in Pregnant Rabbits >per Ituc;t '-iO.: Conduct *s At: Oosrng I'ariodStudy Dir Ctor: CS81RB0331 Safety Evaluation T.nborstory Sixer Labciatcties, Xnc.