Coenzyme Q9 (CAS 303-97-9)

Coenzyme Q9, with the CAS number 303-97-9, is a member of the ubiquinone family, a group of lipid-soluble benzoquinones that play vital roles in the electron transport chain within cellular mitochondria. Structurally characterized by a quinone ring and a side chain of nine isoprenoid units, Coenzyme Q9 is particularly predominant in rodents and certain other animal species, differing from Coenzyme Q10, which is more common in humans. This compound functions primarily as an electron transporter within the mitochondrial inner membrane, facilitating the transfer of electrons from complexes I and II to complex III in the process of oxidative phosphorylation, which is crucial for the generation of ATP, the cell′s primary energy currency. In research, Coenzyme Q9 has been extensively used to study mitochondrial dysfunctions and bioenergetics. It serves as a critical tool for understanding the mechanisms of mitochondrial aging and the role of mitochondrial antioxidants in combating oxidative stress. Studies involving Coenzyme Q9 have also provided valuable insights into the variation of ubiquinone function across different species, contributing to broader evolutionary biology discussions. Moreover, its role in modulating the fluidity and functionality of cellular membranes adds another layer of complexity to its significance in cellular biology and biochemistry.