Skip To Content

IUPAC Nomenclature of Organic Chemistry

NOTE: The most recent version of IUPAC Nomenclature of Organic Chemistry is published in Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013, IUPAC Blue Book, prepared for publication by Henri A Favre and Warren H Powell, by RSC Publishing, 2014 [ISBN 978-0-85404-182-4]; https://doi.org/10.1039/9781849733069. With online updates in 2022 published here: https://iupac.qmul.ac.uk/BlueBook/PDF/BlueBookV2.pdf

An online version of the recommendations with all noted changes and corrections is available in HTML and PDF formats at https://www.qmul.ac.uk/sbcs/iupac/BlueBook/ (prepared by G. P. Moss).

Recommendations 1993

Recommendations 1979

Browse 1993 Recommendations

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.

Browse 1979 Recommendations

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.