C21H22O4 [Insufficient Encyclopedic Information]
C21H22O4 is a molecular formula representing a chemical composition of 21 carbon atoms, 22 hydrogen atoms, and 4 oxygen atoms. This term is not a widely recognized standalone concept in general encyclopedic literature; rather, it is a scientific notation used in chemistry to describe a variety of distinct organic compounds known as isomers.
While the formula does not refer to a single, unique substance, it is associated with several notable bioactive compounds in the fields of biochemistry and pharmacology:
- Glabridin: A polyphenolic flavonoid (specifically an isoflavane) found in the root extract of licorice (Glycyrrhiza glabra). It is studied for its potential antioxidant, anti-inflammatory, and skin-lightening properties.
- Tetrahydrocurcumin: A major colorless metabolite of curcumin. It shares the C21H22O4 formula and is investigated for antioxidant activities that may exceed those of curcumin itself.
- Isomers: Numerous other chemical structures share this formula, including various synthetic derivatives and naturally occurring chalcones or flavonoids.
In a laboratory or database context, C21H22O4 identifies a group of molecules with a shared molar mass of approximately 338.40 g/mol. Because these molecules have different structural arrangements (connectivity of atoms), their physical properties, chemical reactivity, and biological effects vary significantly. Without further structural specification, the term C21H22O4 is insufficient to identify a specific chemical entity.