3-methyladipate

3-methyladipate (CAS No.: 3058-01-3) is an endogenous dicarboxylic acid metabolite generated primarily through the ω-oxidation of fatty acids, representing a terminal product of this pathway and reflecting compensatory lipid catabolism when mitochondrial β-oxidation is impaired or saturated. It is also formed during the sequential ω- and β-oxidation of branched-chain fatty acids such as phytanic acid, particularly in metabolic disorders including adult Refsum disease, where defects in peroxisomal enzymes lead to altered lipid processing and accumulation of upstream intermediates. As a small-molecule metabolic intermediate rather than a direct modulator of a defined protein target, 3-methyladipate is most relevant as a functional readout of fatty acid oxidation flux, mitochondrial integrity, and peroxisomal activity, and its levels in biological fluids are widely used as a biomarker to assess disruptions in lipid metabolism and associated mitochondrial dysfunction. Although it does not exhibit classical pharmacological activity with defined IC50 or EC50 values, its measurable accumulation in the nanomolar to micromolar range in biological samples under pathological conditions supports its application in metabolomic profiling, disease mechanism studies, and biomarker discovery workflows. In experimental settings, 3-methyladipate is commonly utilized in cell- and animal-based models to monitor ω-oxidation pathway engagement and to evaluate metabolic perturbations, with concentrations or doses tailored to specific analytical platforms and study objectives in biomedical research and drug discovery.