BACK TO MAIN BIODEGRADATION (METHYLENE BLUE ACTIVE SUBSTANCE) 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 field: The 3M production lot was 158.

BACK BIODEGRADATION TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, N-EtFOSAA, FC-128 (acid form) or FC-129 acid.

3M Specialty Materials 3M Center St.

A R I I M g kbw-2/3/98 Effect of N -Alkyl Perfluorooctylsulfonamides on M itochondrial Bioenergetics In Vitro Kendall B.

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P^ TX-^ % A C U TE TOXICITY TO FISH (FATHEAD MINNOW) 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.

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC116, FC-126, FC-169, or FC-143.

CHRONIC TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as 78.03, PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC-116, FC-126, FC-169, or FC-143.

1UL&.2.G - 6bQ If fl L_ Barbara Leczynski 05/05/2000 03:37 PM To: Karen Lannon/DC/USEPA/US@EPA, Mary Dominiak/DC/USEPA/US@EPA cc: Subject: followup to perfluorochemicals meeting on April 28 -------------------------Forwarded by Barbara Leczynski/DC/USEPA/US on 05/05/2000 03:31 PM Charles Auer ; 05/05/2000 12:03 PM ro om~ov i JHS- -o zx ro cn CO <=>za ~ ~~ oo om --rn O pq OO To: dchakes1@mmm.com cc: bob.sussman@lw.com, Oscar Hernandez/DC/USEPA/US@EPA, Neil Patel/DC/USEPA/US@EPA, Robert Perlis/DC/USEPA/US@EPA, Barbara Leczynski/DC/USEPA/US@EPA Subject: followup to perfluorochemicals meeting on April 28 Dear Bill and Dan, 3M, We found the meeting very helpful in furthering our understanding of the situation with regard to PFOS and other perfluorochemicals.

/)R 6 _ 0-713 BIODEGRADATION (OECD 301 E) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

M AS.6 - O ACUTE TO XIC ITY TO FISH TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate;, which may also be referred to as PFOS, FC-95, or as a component of FC-206CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

fin 2 .6 _ O Z & TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE_______________________________________ ___ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-206CF or FC-206CF-X. (1-Octanesulfonic acid) (CAS # 2795-39-3).

AH. k&G _ 0666 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE ________________ Identity: Mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-3072. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR226-0980 has actually been processed as 8EHQ-0101-0373 but is included here in FYI-0101-1378 as well as it was received as an attachment to this FYI.

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