For industries requiring high-quality chemical compounds, understanding the sourcing landscape for specific CAS numbers is crucial. CAS 1787-61-7, identified as 1-Naphthalenesulfonicacid, 3-hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-7-nitro-, sodium salt, more commonly known as Eriochrome Black T, is one such compound. This versatile chemical finds extensive use as a pharmaceutical intermediate and in various dyeing processes. When it comes to purchasing this essential material, identifying reputable manufacturers and suppliers is key. NINGBO INNO PHARMCHEM CO.,LTD. stands out as a premier source to buy this chemical in China.

The significance of Eriochrome Black T in the pharmaceutical sector cannot be overstated. As a critical intermediate, it plays a pivotal role in the multi-step synthesis of numerous APIs. The reliable availability of this compound directly impacts the efficiency and scalability of drug manufacturing. Companies actively seeking to procure this pharmaceutical intermediate can benefit from the consistent quality and supply chain integrity offered by NINGBO INNO PHARMCHEM CO.,LTD. Their expertise ensures that clients can buy a product that meets precise specifications for sensitive pharmaceutical applications.

Beyond pharmaceuticals, Eriochrome Black T is a well-established dye, known by various trade names such as Acid Chrome Black ET. Its application spans across the textile and leather industries, where it is used to achieve deep black hues. For businesses in these sectors, securing a consistent and high-quality supply is essential for maintaining brand standards and production output. NINGBO INNO PHARMCHEM CO.,LTD. provides this dye, allowing manufacturers to buy with confidence, knowing they are receiving a product optimized for dyeing performance.

In addition to its industrial uses, Eriochrome Black T is a valuable reagent in laboratory settings, particularly in analytical chemistry. Its properties as a chelating agent and indicator make it indispensable for various titration methods and water quality assessments. Scientific institutions and research laboratories requiring this chemical can rely on NINGBO INNO PHARMCHEM CO.,LTD. for a consistently pure product, ensuring accurate and reproducible experimental results.

The physical form of Eriochrome Black T is typically a black powder, with a notable solubility in water. Its chemical identity is further defined by its molecular formula, C20H13N3O7S.Na, and a molecular weight of 461.38. For procurement, understanding these characteristics is vital. NINGBO INNO PHARMCHEM CO.,LTD. provides detailed specifications and facilitates the purchase of Eriochrome Black T, ensuring that clients across different industries can buy the exact product they need for their processes.