| Size | Price | Stock |
|---|---|---|
| 500mg | $50 | In-stock |
| 1 g | Get quote | |
| 5 g | Get quote | |
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| Cat. No. : | HY-15904 |
| M.Wt: | 295.33 |
| Formula: | C12H18NNaO4S |
| Purity: | >98 % |
| Solubility: | H2O : ≥ 100 mg/mL |
N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium (ESPA) is a Trinder's reagent and a highly water-soluble aniline derivative. N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium has a relatively high absorption wavelength at 540 nm and can be widely used in diagnostic tests and biochemical experiments[1][2]. In Vitro:N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium can be used for the detection of glycerol content. Catalyzed by peroxidase (POD), N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium can undergo a coupling reaction with hydrogen peroxide and 4-aminoantipyrine to produce a purple dye. The amount of the purple dye generated is related to the initial content of glycerol in the system. By measuring the absorbance of the purple dye at a specific wavelength (540 nm) using colorimetry, the concentration of glycerol can be indirectly determined[2].
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