Zeatin Riboside is the most active and ubiquitous form of the naturally occurring cytokinins that promote cell division, stimulate shoot proliferation, inhibit root formation, slow the aging process, and activate gene expression and metabolic activity.

MDK66671 is a prostaglandin D2（PGD2) inhibitor. MDK66671 has CAS#885066-67-1, in which the last five digit was used in its name.

Threonic acid is probably derived from glycated proteins or from the degradation of ascorbic acid. It is a normal component is aqeous humour and blood. Threonic acid is a substrate of L-threonate 3-dehydrogenase in ascorbate and aldarate metabolism pathway.