Procuring chemical intermediates demands a keen eye for quality, especially when dealing with compounds vital for specific industrial applications. Sodium 2,3-dihydroxynaphthalene-6-sulfonate (CAS 135-53-5) is one such chemical, essential as both a dye intermediate and a coupling agent. For R&D scientists and procurement managers, understanding quality indicators is key to successful purchasing.

When you decide to buy Sodium 2,3-dihydroxynaphthalene-6-sulfonate, the first critical parameter to verify is its purity. Most reputable manufacturers, particularly those in China, will specify an assay of 98.56% or higher. This high purity is vital for predictable performance in dye synthesis and for ensuring the effectiveness of diazo photosensitive paper formulations.

As a leading Sodium 2,3-dihydroxynaphthalene-6-sulfonate supplier in China, NINGBO INNO PHARMCHEM CO.,LTD. emphasizes product consistency. Beyond the assay, other specifications like appearance (typically a grayish-white powder to crystal) and the presence of trace impurities (e.g., Iron content) are important indicators of quality. Understanding these details helps you to better gauge the suitability of the material for your specific application.

Inquiring about the price for dye intermediate 135-53-5 should always be coupled with an evaluation of the supplier's overall offering. A competitive price from a manufacturer that offers excellent quality control, reliable packaging, and timely delivery provides greater long-term value. For large-scale operations, the ability to wholesale Sodium 2,3-dihydroxynaphthalene-6-sulfonate at favorable rates is a significant consideration.

When you purchase Sodium 2,3-dihydroxynaphthalene-6-sulfonate, requesting comprehensive documentation such as a Certificate of Analysis (CoA) and a Technical Data Sheet (TDS) is a standard practice. These documents provide verified information on the product's specifications and properties, crucial for quality assurance and regulatory compliance.

Ultimately, ensuring quality when purchasing chemicals like CAS 135-53-5 involves a proactive approach to supplier selection. By focusing on purity, specifications, and reliable supply chains, procurement professionals can confidently source this indispensable intermediate for their industrial needs.