Carbohydrates

Carbohydrates (also known as sugars) are molecules consisting of a basic unit, usually a six-membered ring, containing carbon and oxygen, either alone (monosaccharides) or joined together (disaccharides, oligosaccharides, or polysaccharides).

Nucleosides

Nucleosides Natural and modified nucleoside analogs (i.e. nucleobase linked to a sugar moiety but lacking the phosphate groups).

Others