Adenosine is a nucleoside comprised of adenine attached to a ribose (ribofuranose) moiety via a -N9-glycosidic bond. Deoxyadenosine monophosphate is a derivative of the common nucleic acid ATP or adenosine triphosphate in which the -OH (hydroxyl) group on the 2' carbon on the nucleotide's pentose has been removed (hence the deoxy- part of the name).

Osteocalcin (human) is a vitamin K-dependent bone specific protein. Osteocalcin (human) is chemotactic for several of the cell types frequently found at bone remodeling surfaces.

1,2,3,6,7-Pentamethoxyxanthone is a natural product from Polygala tenuifolia.