6-Methyltetradecanoic Acid Ethyl Ester-d3 is an isotope analog of 6-Methyltetradecanoic Acid Ethyl Ester. 6-Methyltetradecanoic Acid Ethyl Ester is an ethyl analog of 6-Methyltetradecanoic Acid. 6-Methyltetradecanoic Acid is used in analytical studies for the identification of human cerumen by gas chromatography.