Thesuffix–ol is used inorganic chemistry principally to form names oforganic compounds containing thehydroxyl (–OH) group, mainlyalcohols. The suffix was extracted from the wordalcohol.

The suffix also appears in sometrivial names with reference tooils (from Latinoleum, oil). Examples of thissense of the suffix includephenol,eugenol,urushiol, andmenthol.

The IUPAC name of alcohols can derive from the following rules:

1. Identify the longest carbon chain, and number each carbon. Name the base alkane according to theorganic nomenclature rules.
2. Identify the hydroxyl group and which carbon it is on. To be alcohol, the -OH must be bonded to a carbon.
3. Use the suffix -ol to denote which carbon the alcohol group is on. A three-carbon chain with the -OH on the second carbon would bepropan-2-ol. Note that in some instances, common names are better.
4. If the -OH is on the end of the chain, or the carbon chain is only 1 or 2, use no number.
5. Use standard Greek prefixes to name molecules with two or more -OH groups (di- for 2, and so on).

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• Methanol
• Ethanol
• Isopropanol
• Phenol
• Erythritol
• Glycol
• t-Butyl alcohol

• International Union of Pure and Applied Chemistry, Commission on Nomenclature of Organic Chemistry (1993). Panico R; Powell WH; Richer JC (eds.).A guide to IUPAC nomenclature of organic compounds: recommendations 1993. Oxford: Blackwell Scientific Publications.ISBN 0-632-03702-4.

• The dictionary definition of-ol at Wiktionary

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