IUPAC 名称
2,3-dimethyl-5-(3-methylbut-2-en-1-yl)cyclohexa-2,5-diene-1,4-dione
描述
Plastoquinone is a member of the class of compounds known as prenylquinones. Prenylquinones are quinones with a structure characterized by the quinone ring substituted by an prenyl side-chain. Plastoquinone is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Plastoquinone can be found in barley, which makes plastoquinone a potential biomarker for the consumption of this food product. Plastoquinone (PQ) is an isoprenoid quinone molecule involved in the electron transport chain in the light-dependent reactions of photosynthesis. The most common form of plastoquinone, known as PQ-A or PQ-9, is a 2,3-dimethyl-1,4-benzoquinone molecule with a side chain of nine isoprenyl units. There are other forms of plastoquinone, such as ones with shorter side chains like PQ-3 (which has 3 isoprenyl side units instead of 9) as well as analogs such as PQ-B, PQ-C, and PQ-D, which differ in their side chains. The benzoquinone and isoprenyl units are both nonpolar, anchoring the molecule within the inner section of a lipid bilayer, where the hydrophobic tails are usually found .
InChI标识符
InChI=1S/C13H16O2/c1-8(2)5-6-11-7-12(14)9(3)10(4)13(11)15/h5,7H,6H2,1-4H3