Addition of Vowels

On relatively rare occasions, vowels are inserted between consonants for euphony:

e.g., 2-Naphthalenesulfonodiimidic acid (cf. Rule C-642.2)

Ethyl ethanesulfonohydroximate (cf. Rule C-642.1).

See Recommendations'93 R-0.1.7


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.

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