ketoses

https://doi.org/10.1351/goldbook.K03387
Ketonic parent sugars (polyhydroxyketones $\ce{H–[CHOH]_{n}–C(=O)[CHOH]_{m}–H}$ with three or more carbon atoms) and their intramolecular hemiacetals. The oxo group is usually at $\ce{C-2}$. E.g. ᴅ-fructose:
molecule
Sources:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1346 [Terms] [Paper]
White Book, 2nd ed., p. 129 [Terms] [Book]
Citation: 'ketoses' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.K03387 RIS BibTex EndNote
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