12-Methylbenz[a]anthracene-d14

12-Methylbenz[a]anthracene-d14, also known as 12-MBA-d14, is a deuterated form of 12-Methylbenz[a]anthracene (12-MBA), a polycyclic aromatic hydrocarbon (PAH) that is commonly used in research to study the carcinogenicity and mutagenicity of PAHs. The deuterated form of 12-MBA allows for more accurate analysis in research, as it can be easily distinguished from the non-deuterated form in experiments. This is because the deuterium atoms in 12-MBA-d14 replace some of the hydrogen atoms, resulting in a shift in the mass-to-charge ratio (m/z) during mass spectrometry analysis. In terms of chemical information, 12-MBA-d14 has a molecular formula of C20H8D14 and a molecular weight of 260.37 g/mol. It has a melting point of 197-198°C and a boiling point of 430-432°C. It is a pale yellow, crystalline solid that is insoluble in water but soluble in organic solvents such as ethanol, methanol, and chloroform. In research, 12-MBA-d14 is commonly used as a labeled internal standard in analytical methods such as gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS) to measure the levels of 12-MBA in biological and environmental samples. It is also used in studies to investigate the metabolism and pharmacokinetics of 12-MBA in vivo. Overall, the use of 12-MBA-d14 in research provides a valuable tool for accurate analysis and understanding of the toxicology and carcinogenicity of PAHs.