title: Non-identity of ubiquinol-9 and 'compound x': a precursor of ubiquinone-9 in the rat.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002855:Chromatography, Thin Layer; D066298:In Vitro Techniques; D050356:Lipid Metabolism; D008055:Lipids / Q000302:isolation & purification*; D008099:Liver / Q000378:metabolism*; D010084:Oxidation-Reduction; D051381:Rats; D014451:Ubiquinone / Q000096:biosynthesis*
chemical_list: D002247:Carbon Isotopes; D008055:Lipids; D014451:Ubiquinone