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IUPAC Nomenclature of Organic Chemistry
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NOTE: The most recent version of Nomenclature of Organic Chemistry. IUPAC Recommendations and Preferred Name 2013 (Blue Book) was published in December 2013. These rules supercede 1979 and 1993 recommendations.

Currently these rules are only available in the print version: Favre, Henri A. and Powell, Warren H. Nomenclature of Organic Chemistry. IUPAC Recommendations and Preferred Name 2013. Cambridge, UK: The Royal Society of Chemistry, 2013. ISBN 978-0-85404-182-4.

Recommendations 1979

Recommendations 1993

A. Hydrocarbons Preamble
B. Fundamental Heterocyclic Systems R-0 Introduction
C. Characteristic Groups Containing Carbon, Hydrogen, Oxygen, Nitrogen, Halogen, Sulfur, Selenium, and/or Tellurium R-1 General Principles of Organic Nomenclature
List of Radical Names R-2 Parent Hydrides and their Derived Substituent Groups
R-3 Characteristic (Functional) Groups
R-4 Guide to Name Construction
R-5 Applications to Specific Classes of Compounds
R-6 Name Interpretation
R-7 Stereochemical Specification
R-8 Isotopically Modified Compounds
R-9 Appendix

This HTML reproduction of Sections A, B and C of IUPAC "Blue Book" is as close as possible to the published version [see Nomenclature of Organic Chemistry, Sections A, B, C, D, E, F, and H, Pergamon Press, Oxford, 1979. Copyright 1979 IUPAC.] If you need to cite these rules please quote this reference as their source.

This HTML reproduction is as close as possible to the published version [see IUPAC, Commission on Nomenclature of Organic Chemistry. A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993), 1993, Blackwell Scientific publications, Copyright 1993 IUPAC]. If you need to cite these rules please quote this reference as their source.


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In December 2013 the new and long awaited Nomenclature of Organic Chemistry IUPAC Recommendations and Preferred Names was published. Learn more here

The HTML reproduction of the IUPAC Nomenclature of Organic Chemistry is published by Advanced Chemistry Development, Inc. with permission of the IUPAC. The following IUPAC publications were taken as a source: If you need to cite these rules please quote the references above as their source.
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