1-Pyrenebutyric acid

1-Pyrenebutyric acid is a sodium salt that belongs to the group of polymerase chain reaction (PCR) reagents. It is used in PCR as a fluorescent probe for detecting the presence of dinucleotide phosphate and covalent linkages. 1-Pyrenebutyric acid has been shown to be a potential biomarker for electrochemical impedance spectroscopy and can be used as an optical sensor for optimal concentration. This compound has also been used in biological studies to detect the presence of human immunoglobulin, which binds to it with high affinity. 1-Pyrenebutyric acid undergoes a phase transition at a temperature between -190 and -195 degrees Celsius, which makes it useful as a fluorescence dye.