2,3-Diaminonaphthalene (DAN), identified by its CAS number 771-97-1, stands as a pivotal organic compound with significant utility across various scientific disciplines. This aromatic diamine, possessing the molecular formula C10H10N2 and a molecular weight of 158.2 g/mol, is characterized by its distinctive naphthalene core adorned with two amino groups. Typically appearing as a crystalline powder, its color can range from off-white to a subtle brownish-green hue, reflecting its inherent chemical properties and purity. Its stable yet reactive nature makes it an invaluable asset in both analytical methodologies and complex chemical syntheses.

One of the foremost applications of 2,3-Diaminonaphthalene lies in its role as a highly selective reagent for precise quantitative analysis. It is extensively utilized as a fluorometric and colorimetric agent for the determination of trace elements, most notably selenium. In this context, DAN reacts with selenium to form a fluorescent adduct, which can then be accurately quantified using fluorescence spectrophotometry, offering exceptional sensitivity and specificity. This method is critical in environmental monitoring, nutritional studies, and clinical diagnostics where even minute concentrations of selenium need to be precisely measured.

Beyond selenium detection, 2,3-Diaminonaphthalene is also widely recognized as a superior fluorometric probe for nitrite (NO2-). The mechanism involves DAN reacting with nitrosonium, a species formed from nitrite under acidic conditions. This reaction yields 1H-naphthotriazole, a highly fluorescent compound. This sensitive assay allows for the detection of nitrite concentrations ranging from as low as 10 nM to 10 µM, making it an indispensable tool in biological and environmental research. Its compatibility with high-throughput formats, such as 96-well microplates, further enhances its appeal for rapid and efficient analysis in various laboratory settings. Furthermore, DAN has demonstrated utility in the detection of ketones and alpha-keto acids, expanding its versatility in analytical chemistry.

Understanding the physical and chemical properties of 2,3-Diaminonaphthalene is crucial for its proper handling and application. DAN exhibits a melting point typically within the range of 197-203 °C. While only slightly soluble in water, it readily dissolves in several common organic solvents including pyridine, dimethylsulfoxide (DMSO), dimethylformamide (DMF), ethanol, ether, and hot methanol, as well as in dilute hydrochloric acid. For optimal preservation of its chemical integrity and reactivity, 2,3-Diaminonaphthalene should be stored in a dark place under an inert atmosphere, ideally at temperatures between 2-8°C. Protection from light and moisture, through desiccation, is also paramount to maintain its high purity and performance over extended periods.

The scope of 2,3-Diaminonaphthalene extends beyond its analytical applications, demonstrating potential in cutting-edge materials science. It serves as a valuable precursor in the synthesis of complex organic compounds, including those required for the creation of multi-layer 3D materials and chiral organic sandwich compounds. These advanced materials find applications in areas such as optoelectronics, catalysis, and drug delivery systems, highlighting DAN's role in driving innovation in chemical synthesis. The consistent quality and high purity of 2,3-Diaminonaphthalene are paramount for ensuring reliable and reproducible results in both research and industrial processes.

As a leading manufacturer and trusted supplier of specialized chemical compounds, we are committed to providing top-tier 2,3-Diaminonaphthalene (CAS 771-97-1) to meet the stringent demands of global industries and research institutions. Our dedication to quality control ensures that our product consistently adheres to high purity standards, making it an ideal choice for your most critical applications. We offer competitive price structures and flexible supply options, catering to both bulk orders and specific quantity requirements. For those looking to buy or purchase this essential chemical, our streamlined process and commitment to customer satisfaction ensure a seamless experience. We invite you to connect with us to discuss your specific needs and discover how our high-quality 2,3-Diaminonaphthalene can support your projects with unparalleled performance and reliability.