This 3-hydroxyundecanoic acid methyl ester is a high purity standard that is ideal for analysis and biological systems. 3- Hydroxyundecanoic acid is unusual in many biological systems and is therefore useful as an internal standard.1 However 3- hydroxyundecanoic acid is a major constituent of some organisms such as in Idiomarina loihiensis where it is concentrated in the membrane.2 3-Hydroxy fatty acids are intermediates in fatty acid biosynthesis and have been found to be converted to the omega-fatty acid by the enzyme CYP4F11 and then into dicarboxylic acids in vivo.3 3-Hydroxy fatty acids are used as biomarkers for fatty acid oxidative disorders of both the long- and short-chain 3-hydroxy-acyl-CoA dehydrogenases.4 Polyhydroxyalkenoates, polyesters produced by bacteria fermentation, are used for carbon and energy storage and are of interest in studies regarding their synthesis, properties and mechanisms and are used as biodegradable plastics.5 Medium chain-length polyhydroxyalkenoate monomers may have pharmaceutical properties.
