Any fatty acid containing no carbon to carbon multiple bonds. Known to produce adverse biological effects when ingested to excess.
| Member | Definition | Role |
|---|
| phytomonic acid | A C18, saturated fatty acid composed of octadecanoic acid having an 11,12-methylene substituent forming a cyclopropane. | 11,12-methyleneoctadecanoic acid |
| propionic acid | A short-chain saturated fatty acid comprising ethane attached to the carbon of a carboxy group. | propionic acid |
| stearic acid | A C18 straight-chain saturated fatty acid component of many animal and vegetable lipids. As well as in the diet, it is used in hardening soaps, softening plastics and in making cosmetics, candles and plastics. | octadecanoic acid |