2-(4-Fluorophenoxy-d4)-acetic Acid Ethyl Ester

2-(4-Fluorophenoxy-d4)-acetic Acid Ethyl Ester, also known as ethyl 2-(4-fluorophenoxy-d4)acetate, is a stable isotope-labeled compound used in various research applications. It is commonly used as an internal standard for the quantification of 2-(4-Fluorophenoxy)-acetic Acid (FPA) in biological samples using liquid chromatography-mass spectrometry (LC-MS) analysis. This compound is a white crystalline powder with a molecular formula of C10H9D4FO3. The isotopic labeling in the compound provides a distinct mass shift that allows for accurate quantification of FPA in biological samples. This is important in studies that investigate the metabolic pathways of FPA and its role in various diseases. The usage of 2-(4-Fluorophenoxy-d4)-acetic Acid Ethyl Ester extends beyond biological research. It is also used in the synthesis of other stable isotope-labeled compounds and as a reference standard in analytical chemistry. The compound has a melting point of 58-60°C and a boiling point of 290-292°C. In conclusion, 2-(4-Fluorophenoxy-d4)-acetic Acid Ethyl Ester is a valuable tool in biological and chemical research. Its stable isotope-labeled structure provides a unique mass shift, allowing for accurate quantification and analysis. Its applications extend to the synthesis of other labeled compounds and as a reference standard in analytical chemistry.