Commission on Nomenclature of Organic Chemistry

Section H: Isotopically Modified Compounds

(Recommendations 1978)

Published in Pure Appl. Chem., 1979, 51, 353-380.

World Wide Web version Prepared by G. P. Moss

School of Physical and Chemical Sciences, Queen Mary University of London,
Mile End Road, London, E1 4NS, UK

These Rules are as close as possible to the published version [Pure Appl. Chem., 1979, 51, 353-380. Copyright IUPAC; reproduced with the permission of IUPAC]. It was also published as part of Nomenclature of Organic Chemistry, Sections A, B, C, D, E, F, and H, Pergamon Press, 1979. If you need to cite these rules please quote these references as their source. A PDF of the original printed version is available.

See also Chem. Listy, 1983, 77, 74-94. (in Czech), Kem. Kozl., 1981, 55, 453-473 (in Hungarian) and Nomenklatura związków Organicznych. Część H. Związki o modyfikowanym składzie izotopowym, Wiad. Chem., 33, 698-702, 753-765 (1979) (in Polish)

The provisional version of this document was published in Eur. J. Biochem., 1978, 86, 9-25 and Biochemical Nomenclature and Related Documents, Biochemical Society, 1978, pages 27-43; with the changes in the final version listed in Eur. J. Biochem., 1979, 102, 315-316.

For problems in converting the text into a World Wide Web version see the IUPAC nomenclature home page.

Any comments, corrections or suggestions for a future edition should be e-mailed to


Continued with Rules Introduction and H-1

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