Phenyl J Acid, chemically identified as 7-Anilino-4-hydroxy-2-naphthalenesulfonic acid with CAS number 119-40-4, is a compound of significant importance in the realm of fine chemicals, particularly as a dye intermediate. Its specific chemical structure and properties make it an indispensable precursor for the synthesis of a variety of advanced dyes. For professionals in the chemical industry, understanding its characteristics and sourcing channels is vital for efficient and effective production.

The typical appearance of Phenyl J Acid is a blue or blue-gray powder, indicating its chemical nature. With a molecular formula of C16H13NO4S and a molecular weight of approximately 315.34 g/mol, this compound is characterized by its sulfonic acid and amino groups, which are key to its reactivity. A critical specification for Phenyl J Acid is its purity, with manufacturers often guaranteeing a minimum assay of 99.5%. This high purity is essential for ensuring predictable reaction kinetics and achieving the desired color saturation and fastness in the final dyes. If you are looking to purchase this chemical, always verify the purity claims and seek out established manufacturers.

The primary application of Phenyl J Acid lies in its role as an intermediate for azo dyes. It is instrumental in creating dyes that offer excellent color intensity and durability. Notably, it is used in the synthesis of Light Fast Blue RGL, a dye prized for its resilience against fading. Furthermore, Phenyl J Acid is a foundational element in the production of various copper salt dyes, such as copper salt green BTL, copper salt blue FBGL, and copper salt purple BBL. These dyes find extensive use in the textile and leather industries, where vibrant and lasting colors are paramount.

For businesses considering the purchase of Phenyl J Acid, understanding the manufacturing landscape is beneficial. Many leading suppliers and manufacturers are based in China, offering competitive pricing and substantial production capacities. When you search for a manufacturer, look for companies that emphasize quality control and have a strong track record in exporting chemical intermediates. These manufacturers can provide the necessary technical support and ensure a stable supply chain, which is critical for large-scale industrial operations. Exploring options to buy Phenyl J Acid from these sources can lead to significant cost efficiencies.

In conclusion, Phenyl J Acid (CAS 119-40-4) is a cornerstone intermediate in dye manufacturing. Its high purity, specific chemical properties, and wide-ranging applications make it a valuable commodity. By partnering with reputable manufacturers and suppliers who prioritize quality and consistency, industries can ensure the success of their dyeing processes and the excellence of their final products. Consider NINGBO INNO PHARMCHEM CO.,LTD. for your requirements of this essential chemical intermediate.