-one

Suffix used in organic chemistry For English pronouns formed with the suffix -one, see Indefinite pronoun. The suffix -one is used in organic chemistry to form names of organic compounds containing the -C(=O)- group: see ketone.A guide to IUPAC nomenclature of organic compounds: recommendations 1993 International Union of Pure and Applied Chemistry, Commission on Nomenclature of Organic Chemistry Panico R Powell WH Richer JC Oxford Blackwell Scientific Publications 1993 0-632-03702-4 Sometimes a number between hyphens is inserted before it to state which atom the =O atom is attached to. This suffix was extracted from the word acetone. The final "-e" disappears if it is followed by another suffix that starts with a vowel. In IUPAC nomenclature for ketones, the suffix -one replaces the terminal "-e" of the corresponding alkane name and may be preceded by a locant number indicating the carbon position of the carbonyl group in the chain.2013-10-02 Nomenclature of Aldehydes & Ketones https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Supplemental_Modules_(Organic_Chemistry)/Aldehydes_and_Ketones/Nomenclature_of_Aldehydes_and_Ketones 2026-01-06 Chemistry LibreTexts en This system allows unambiguous identification of the compound’s structure, particularly in longer or branched carbon chains, where multiple carbonyl positions are possible. References one Category:English suffixes