Glycosidic bond
![Formation of ethyl glucoside : Glucose and ethanol combine to form ethyl glucoside and water. The reaction often favors formation of the α glycosidic bond as shown due to the anomeric effect.](/Images/godic/202501/15/Ethyl-glucoside0634.png")
![Adenosine, a component of RNA, results from the sugar ribose and adenine via the formation of an N-glycosidic bond (shown as the vertical line between the N and the sugar cycle)](/Images/godic/202501/15/Adenosin.svg0634.png")
![A β-1,6 glucan molecule showing how carbons are numbered. The terminal saccharide is linked via a β-1,6 glycosidic bond. The remaining linkages are all β-1,3.](/Images/godic/202501/15/Carbonnumbering0634.jpg")
![](/Images/godic/202501/15/Vishal_Joshi0634.png")
In chemistry, a glycosidic bond or glycosidic linkage is a type of covalent bond that joins a carbohydrate (sugar) molecule to another group, which may or may not be another carbohydrate.
A glycosidic bond is formed between the hemiacetal or hemiketal group of a saccharide (or a molecule derived from a saccharide) and the hydroxyl group of some compound such as an alcohol. A substance containing a glycosidic bond is a glycoside.