Aglycone
An aglycone, or aglycon, is the compound remaining after the glycosyl group on a glycoside is replaced by a hydrogen atom.
For example, the aglycone of a cardiac glycoside would be a steroid molecule.
Classes of phytochemicals found in the aglycone and glycosides forms :
Polyphenols
See also
glycone
glycoside
glucoside
References
IUPAC Compendium of Chemical Terminology 2nd Edition (1997) 1995, 67, 1312