The creation of vibrant colors that enhance our world relies on intricate chemical processes, and Sodium Naphthionate (CAS 130-13-2) plays a pivotal role in this landscape. As a key intermediate, particularly for azo dyes, this compound is indispensable for the textile, leather, and paper industries. NINGBO INNO PHARMCHEM CO.,LTD., a dedicated manufacturer and supplier from China, is at the forefront of providing this essential chemical.

Sodium Naphthionate, also known as Sodium 4-amino-1-naphthalenesulfonate, is derived from naphthalene. Its chemical structure is key to its function. The presence of an amino group (NH2) allows it to be diazotized, a process where it reacts with nitrous acid to form a diazonium salt. This highly reactive diazonium salt can then readily couple with another aromatic compound, forming an azo linkage (-N=N-). This azo linkage is the chromophore responsible for the color in azo dyes. The sulfonate group (-SO3Na) enhances water solubility, a crucial property for dyes used in aqueous dyeing processes.

The synthesis of Sodium Naphthionate typically involves sulfonation of 1-naphthylamine followed by neutralization. The exact industrial synthesis routes are optimized for yield, purity, and cost-effectiveness. For buyers, understanding the quality standards is important; Sodium Naphthionate is often supplied with a purity of 75% minimum, appearing as off-white crystals and packaged in 25 kg drums. This ensures that the intermediate is suitable for producing dyes with consistent shades and excellent fastness properties.

The versatility of Sodium Naphthionate extends beyond traditional dyeing. Its ability to form stable complexes and its specific reactivity make it valuable in synthesizing specialized materials. Furthermore, its medical application as an antidote highlights its unique chemical properties. For R&D scientists exploring new colorants or functional materials, sourcing high-purity Sodium Naphthionate from reliable manufacturers is a critical first step.

NINGBO INNO PHARMCHEM CO.,LTD. is committed to producing Sodium Naphthionate that meets stringent quality requirements. Our manufacturing processes are designed to ensure batch-to-batch consistency, a vital factor for our clients in the dye industry. We understand the importance of a stable supply chain and competitive pricing. For companies looking to buy Sodium Naphthionate (CAS 130-13-2) or seeking a quotation for this indispensable dye intermediate, we offer a dependable partnership and high-quality chemical solutions from our China-based facilities.