For any B2B purchase in the chemical industry, understanding and verifying product specifications is non-negotiable. 1,8-Diaminonaphthalene (CAS 479-27-6) is no exception. As a critical intermediate for organic synthesis, its quality directly impacts the outcome of downstream processes. This article outlines the essential specifications that procurement managers and research scientists should focus on when seeking to buy this compound, and highlights the importance of sourcing from reputable manufacturers and suppliers.

The most fundamental specification for 1,8-Diaminonaphthalene is its purity, commonly expressed as an assay percentage. A minimum assay of 98.0% is typically required for most demanding applications, particularly in pharmaceutical and fine chemical synthesis. Higher purity grades may be available for specialized uses. When you inquire about the price of 1,8-Diaminonaphthalene, always confirm the guaranteed assay percentage. A reliable supplier will readily provide a Certificate of Analysis (CoA) detailing this crucial parameter.

Another vital characteristic is the appearance of the product. 1,8-Diaminonaphthalene is described as needle crystals. Deviations from this expected physical form can indicate potential issues with the manufacturing or storage process. Consistency in appearance is a visual indicator of product integrity, which is why suppliers that maintain strict quality control measures are preferred.

The melting point is another key physical property that serves as an indicator of purity. The literature melting point for 1,8-Diaminonaphthalene is typically in the range of 60-65 °C. A melting point outside this range, or a broad melting range, can suggest the presence of impurities. When sourcing from a manufacturer, it's beneficial to ensure their product consistently falls within the expected melting point parameters.

Other specifications that might be relevant depending on the specific application include density and solubility. Understanding these properties ensures compatibility with existing processes and reaction conditions. For chemical buyers, especially those looking to purchase in bulk, partnering with a manufacturer and supplier in China that clearly lists all relevant specifications, and can provide supporting documentation like SDS (Safety Data Sheets), is a sign of a trustworthy business relationship. This diligence ensures that the 1,8-Diaminonaphthalene you procure meets all your project requirements.