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Congener-Specific Numbering Systems for the Environmentally Relevant C4 through C8 Perfluorinated Homologue Groups of Alkyl Sulfonates, Carboxylates, Telomer Alcohols and Acids, and Their Derivatives

Sierra Rayne¹, Kaya Forest² & Ken J. Friesen¹

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1. University of Winnipeg
2. Okanagan College

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Document Type:

Poster

Date:

Received 31 July 2008 04:31 UTC; Posted 05 August 2008

Subjects:

Chemistry, Earth & Environment

Tags:

• Perfluorinated alkyl compounds
• Congener specific numbering system
• environmental contaminants

Abstract:

We introduce a congener-specific numbering system for the C4 through C8 perfluorinated homologue groups of alkyl sulfonates, carboxylates, telomer alcohols and acids, and their derivatives. Increasing length of the carbon chain beyond C3 leads to a corresponding rapid increase in the number of potential isomers (C4 =4, C5 =8, C6 =17, C7 =39, and C8 =89 congeners). There is a need for clear and unambiguous chemical shorthand to ensure accuracy and consistency in the future perfluorinated alkyl substance (PFA) literature, and to correct previous misconceptions that may have restricted research efforts into developing full-congener PFA analysis. If adopted by the research community, introduction of a numbering system at this relatively early stage of investigations into the congener-specific analysis, environmental behavior, and toxicology of PFAs would not require an arduous and difficult reassignment of historical structures and naming conventions presented in the prior art. Many PFA congeners are chiral, necessitating a consideration of their enantiospecific environmental behavior and toxicology.

Presented at:

91st Conference of The Canadian Society for Chemistry. Edmonton, AB, Canada. May 24-28, 2008, 27 May 2008

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License:

This document is licensed to the public under the Creative Commons Attribution 3.0 License

How to cite this document:

Rayne, Sierra, Forest, Kaya, and Friesen, Ken. Congener-Specific Numbering Systems for the Environmentally Relevant C4 through C8 Perfluorinated Homologue Groups of Alkyl Sulfonates, Carboxylates, Telomer Alcohols and Acids, and Their Derivatives. Available from Nature Precedings <http://dx.doi.org/10.1038/npre.2008.1957.2> (2008)

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Other versions of this document in Nature Precedings

Version number	Document title	Date
v1	Posted 11 June 2008

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