Description_x000D_ Biochem/physiol Actions_x000D_ Oxidation product of fatty acids in the diet, particularly phytanic acid. Phytanic acid is oxidized by alpha oxidation yielding pristanic acid, which is subsequently degraded by peroxisomal beta oxidation. Several inborn errors of metabolism with one or more deficiencies in the phytanic acid and pristanic acid breakdown have been described._x000D_ Other Notes_x000D_ Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. P6617.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.