Diethanolamine is an organic compound with the chemical formula C₄H₁₁NO₂ and CAS Number 111-42-2. It is typically supplied as a colourless to pale yellow, viscous liquid with an ammonia-like odour. It is miscible with water and is hygroscopic.

Diethanolamine is valued for its chemical reactivity and its ability to function as a pH-adjusting agent, chemical intermediate, and component in specialised formulations. Common laboratory applications include organic synthesis, preparation of chemical solutions, acid-base studies, and research involving amines and alcohol-containing compounds.

Its chemical properties also make Diethanolamine useful in selected analytical procedures and industrial chemical formulations, including certain detergents, surfactants, and gas-treatment systems. The appropriate grade and purity should be selected according to the requirements of the intended application.

KSFE Malaysia supplies laboratory chemicals and scientific products for research institutions, educational facilities, and general laboratory applications.

Safety Note: Handle Diethanolamine in accordance with the product label and supplier's safety data sheet (SDS). It may cause skin and eye irritation or serious eye damage, depending on the product classification, and exposure should be minimised. Avoid inhalation of mist and contact with the eyes and skin. Use appropriate personal protective equipment and work in a suitable, well-ventilated area. Follow the supplier's recommendations for storage, handling, and disposal.