The full Chinese name of TOPS (CAS number: 40567-80-4) is N-ethyl-N - (3-sulfopropyl) -3-methylaniline sodium salt. It is a white to slightly brown powder, belonging to the color reagent family. When used as a water-soluble reagent, it can be used to determine hydrogen peroxide by enzymatic spectrophotometry. Due to its good water solubility, high sensitivity, and strong stability, TOPS has been widely used. During clinical testing, venous blood should be collected from the test subjects first. The subjects should be on an empty stomach for 12 hours, preferably in the morning or 12 hours Do not drink alcohol, disinfect blood vessels carefully, and ensure that blood samples are free of hemolysis. The detection of uric acid involves catalyzing the complete oxidation of uric acid with oxygen and water to form allantoin, carbon dioxide, and hydrogen peroxide H2O2 using uratase. H2O2 reacts with TOPS and 4-AAP under POD catalysis, and TOPS is oxidized into color products. The absorbance is measured using a spectrophotometer, and the absorbance intensity is proportional to the uric acid content for uric acid analysis. This is a typical biochemical detection method that uses a two-step enzymatic reaction to measure. Advantages of Desheng TOPS 1. The TOPS produced by Desheng has a purity of ≥ 99%, a moisture content of ≤ 5%, an iron content of<5PPM, a pH range of 6-8, a burning residue of ≤ 0.1%, and a test water solubility of 500mg/ml, produced strictly in accordance with industry standards; 2. TOPS has a significant advantage in price compared to other manufacturers, and can also be packaged according to customer needs. The packaging process is strict, and it is carried out on a professional packaging platform. The packaging platform is kept clean, and packaging personnel must wear disposable gloves for packaging. Righteousness is not only a work attitude, but also a responsibility to strictly control product quality. 3. Good after-sales service, actively solving various problems encountered during the transaction process, ensuring that customer interests are not lost, promising unconditional returns and exchanges for tasks with quality issues, truly achieving customer satisfaction and achieving a win-win cooperation goal. Desheng Technology has over ten years of research and development, production, and sales experience in the field of diagnostic raw materials, especially in the derivatives of sodium aniline salts We have extensive experience in the development and improvement of new Trinder's reagents in the IoT series. Based on traditional chromogenic substrates, we continuously optimize and improve the performance of functional groups to meet clinical testing needs.