(CH3)2NCH2CH2OH
As you can see, dimethylethanolamine is a tertiary amine, which means it has three nitrogen atoms. Nitrogen atoms are basic, which means they can react with acids to form salts. This property makes dimethylethanolamine useful as a corrosion inhibitor.

Dimethylethanolamine is also a surfactant, which means it lowers the surface tension of water. This property makes it useful as a defoamer.

Dimethylethanolamine is a colorless, flammable liquid with a fishy odour. It is used in a variety of industrial applications including the production of resins, pharmaceuticals and cosmetics. It is also used as a corrosion inhibitor and defoamer.