Gentaur 4-(Dimethylamino)phenol -1g

4-(Dimethylamino)phenol is a reactive molecule that can react with sodium carbonate to form a fluorescent product. The reaction mechanism has been elucidated by fluorescence spectroscopy and linear calibration curves. 4-DMA(OH)P reacts with sodium carbonate in water at physiological levels, producing p-hydroxybenzoic acid and 4-dimethylaminobenzoic acid. These compounds are also found in the matrix of bacterial cells and may serve as markers for the identification of bacterial metabolism. The reaction between 4DMA(OH)P and sodium carbonate was examined by X-ray crystal structures, which revealed that the reactive site is located on the phenolic hydroxyl group of 4DMA(OH)P. This study showed that the reactive site is localized on the phenolic hydroxy group of 4DMA(OH)P, which makes this molecule useful for identification of bacterial metabolism by means of matrix effect.