Diolamine Chemical formula
Synonyms: Diaethanolamin; Dietanoloamina; Diethanolamine; Diolamina; Diolaminum. Bis(2-hydroxyethyl)amine; 2,2′-Iminobisethanol.
Cyrillic synonym: Диоламин.

Chemical information

Chemical formula: C4H11NO2 = 105.1.
CAS — 111-42-2.




(Diethanolamine). It is a mixture of olamines, consisting largely of diolamine. White or clear, colourless crystals, deliquescing in moist air, or a colourless liquid. Miscible with water, with alcohol, with acetone, with chloroform, and with glycerol; slightly soluble to insoluble in ether, in petroleum spirit, and in benzene. Store in airtight containers. Protect from light.


Diolamine is an organic base that is used as an emulsifier and dispersant. It is used to solubilise fusidic acid and sulfafurazole by the formation of the diolamine salt. It has been used for the preparation of salts of iodinated organic acids used as contrast media. It may be irritating to the skin and mucous membranes.
Published May 08, 2019.