3-Nitrocinnamic acid (CAS 1772-76-5)

rac Metanephrine-d3 Hydrochloride Salt is a chemically synthesized compound, where the "d3" indicates the incorporation of three deuterium atoms, a stable isotope of hydrogen, into the metanephrine molecule. This modification imparts unique physical and chemical properties to the compound, such as altered mass and slightly modified chemical behavior, which are particularly advantageous in mass spectrometry-based analytical techniques. As a racemic mixture, this compound contains equal amounts of two enantiomers of metanephrine, each being a mirror image of the other. This characteristic is in research applications that require a comprehensive understanding of the stereochemical influence on biological systems. In the realm of biochemical and pharmacological research, racemic metanephrine-d3 hydrochloride salt serves as an invaluable internal standard. It is extensively utilized in the quantification and detection of metanephrine in various samples, enabling researchers to achieve highly accurate and reproducible results. This compound plays a pivotal role in studies focused on elucidating the metabolic pathways of catecholamines and understanding the biochemical mechanisms underlying stress responses and related physiological phenomena.