For businesses in the textile and chemical industries, securing a consistent supply of high-quality intermediates is paramount. One such crucial compound is 6-Amino-1-naphthalenesulfonic Acid, identified by its CAS number 81-05-0. This naphthalene derivative plays a vital role as a building block in the synthesis of a wide array of dyes, particularly acidic, reactive, and indirect types. Understanding its properties and where to procure it efficiently can significantly impact manufacturing efficiency and product quality.

Understanding 6-Amino-1-naphthalenesulfonic Acid (CAS 81-05-0)

Often referred to by synonyms such as Dahl's Acid or D Acid, 6-Amino-1-naphthalenesulfonic Acid is typically presented as a white crystalline powder. Its molecular formula is C10H9NO3S, with a molecular weight of 223.25. Key specifications that discerning buyers look for include a minimum purity of 98% (often specified as ≥98% by HPLC), with very low moisture content (≤0.1%) and minimal insoluble matter (≤0.1%). These parameters are critical for ensuring predictable reaction outcomes and achieving the desired color fastness and intensity in the final dye products. If you are looking to buy this chemical, these specifications are your primary benchmark.

The Role in Dye Manufacturing

The versatility of 6-Amino-1-naphthalenesulfonic Acid makes it indispensable for dye manufacturers. Its structural features allow it to readily participate in diazotization and coupling reactions, which are foundational to the creation of azo dyes. This means that whether you are producing vibrant acid dyes for wool and nylon, brilliant reactive dyes for cotton, or specific indirect dyes for various substrates, this intermediate is likely to be a core component in your formulation. The demand for high-performance dyes in the global textile market continues to grow, highlighting the importance of reliable suppliers for this chemical.

Sourcing Strategies: Finding a Reliable Manufacturer and Supplier in China

For businesses seeking to purchase 6-Amino-1-naphthalenesulfonic Acid, China stands out as a major hub for chemical manufacturing and supply. When evaluating potential suppliers, several factors should be considered. Firstly, purity and consistency are non-negotiable. Look for manufacturers that provide detailed Certificates of Analysis (CoA) for each batch, confirming that the product meets the required specifications. Secondly, pricing is a significant consideration, especially for large-scale operations. Obtaining competitive quotes from multiple suppliers is a standard procurement practice.

A reputable manufacturer will also offer transparent communication regarding production capabilities, lead times, and packaging options. Standard packaging often includes 25kg drums, suitable for industrial use. Proper storage recommendations, such as keeping the product sealed, shaded, dry, cool, and well-ventilated, are also indicative of a supplier’s attention to product integrity. When you engage with a manufacturer, inquire about their capacity to meet your ongoing demand and their logistics network.

Getting a Quote and Ensuring Quality

To secure your supply of 6-Amino-1-naphthalenesulfonic Acid (CAS 81-05-0), reaching out to established chemical suppliers is the next step. Many companies offer online inquiry forms or direct contact channels, allowing you to request detailed quotes and product samples. Sampling is an excellent way to verify the quality and suitability of the chemical for your specific applications before committing to a larger purchase. By partnering with a dependable manufacturer, you can ensure the consistent quality and cost-effectiveness required for success in the competitive dye industry.