Waxes are a type of lipid that contain an ester surrounded on both sides by long, hydrocarbon chains. Esters are non-polar or hydrophobic molecules, making them dissolve well in oil, but poorly in water. These properties make them biologically useful for coatings that seal in or repel water.
- Ester with two hydrocarbon chains on both sides
- Waxes are synthesized when a long-chain alcohol nucleophilically attacks a long-chain fatty acid
- Ear wax
- Covers feathers of aquatic birds and leaf surfaces of some plants
- Unique Properties: