An aliphatic aldehyde obtained by formal oxygenation of one of the terminal methyl groups of any straight-chain alkane.
| Member | Definition | Role |
|---|
| caprylic aldehyde | A saturated fatty aldehyde formally arising from reduction of the carboxy group of caprylic acid (octanoic acid). | octanal |
| decanaldehyde | A saturated fatty aldehyde formally arising from reduction of the carboxy group of capric acid (decanoic acid). | decanal |
| heptanal | An n-alkanal resulting from the oxidation of the alcoholic hydroxy group of heptan-1-ol to the corresponding aldehyde. An endogenous aldehyde coming from membrane lipid oxidation, it is found in the blood of lung cancer patients and has been regarded as a potential biomarker of lung cancer. | heptanal |
| n-hexanal | A saturated fatty aldehyde that is hexane in which one of the terminal methyl group has been mono-oxygenated to form the corresponding aldehyde. | hexanal |
| nonanal | A saturated fatty aldehyde formally arising from reduction of the carboxy group of nonanoic acid. Metabolite observed in cancer metabolism. | nonanal |
| undecanal | A saturated fatty aldehyde formally arising from reduction of the carboxylic acid group of undecanoic acid. It is a component of essential oils from citrus plants like Citrus reticulata. | undecanal |