[U-Ring-13C6]-[4-(Methylthio)phenyl]methanol

[U-Ring-13C6]-[4-(Methylthio)phenyl]methanol is a chemical compound that is commonly used in scientific research as a stable isotope-labeled internal standard. The compound is primarily used in the field of mass spectrometry to quantitatively determine the concentration of analytes in biological matrices. The chemical formula of [U-Ring-13C6]-[4-(Methylthio)phenyl]methanol is C13H10D6OSS. The compound is a labeled analog of 4-(Methylthio)phenylmethanol, which means that it contains six carbon-13 atoms in the urea ring of the molecule. The compound is a white solid that is soluble in organic solvents such as methanol, ethanol, and dichloromethane. [U-Ring-13C6]-[4-(Methylthio)phenyl]methanol is used as an internal standard in mass spectrometry because it has the same chemical and physical properties as the analyte being measured. By adding a known amount of the labeled compound to a biological sample before analysis, researchers can accurately determine the concentration of the analyte in the sample. This technique is commonly used in the analysis of drugs, metabolites, and other biomolecules in biological samples such as blood, urine, and saliva. Overall, [U-Ring-13C6]-[4-(Methylthio)phenyl]methanol is an important tool in the field of mass spectrometry and is essential for accurate and precise quantitative analysis of biological samples.