For laboratories and research institutions, the accuracy and reliability of analytical reagents are paramount. Sodium 4-Amino-1-Naphthalenesulfonate (CAS 130-13-2), also known as Sodium Naphthionate, serves as a specialized reagent in analytical chemistry. Procurement managers and lab technicians often seek high-purity grades of such compounds from dependable manufacturers and suppliers. This article aims to guide you through the quality considerations and sourcing of this important chemical.

Sodium 4-Amino-1-Naphthalenesulfonate is recognized for its utility as Riegler’s reagent, specifically for the detection and quantification of nitrous acid. This application is critical in environmental monitoring, water quality testing, and various biochemical assays where the presence of nitrites needs to be accurately determined. Furthermore, it's used in the purity testing of certain food colorants, such as Food Red No. 2 and No. 102, ensuring compliance with regulatory standards and product safety. The precise specifications for analytical grade chemicals, including clarity of solution, absence of impurities, and consistent assay values, are essential.

When you need to buy Sodium 4-Amino-1-Naphthalenesulfonate for laboratory use, focusing on purity and grade is non-negotiable. While industrial grades might suffice for dye synthesis, analytical applications typically require higher purity levels, often 98% or greater, with stringent limits on specific contaminants. The cited CAS number, 130-13-2, is your primary identifier for sourcing. It's important to request Certificates of Analysis (CoA) from suppliers to verify that the product meets the required specifications for your specific analytical method.

Sourcing from reputable suppliers in China can provide access to high-quality analytical reagents at competitive prices. Look for suppliers who can provide detailed product documentation, including specifications, safety data sheets (SDS), and confirmation of manufacturing standards. Whether you require small quantities for research or bulk for routine testing, understanding the available packaging options and lead times is vital. Engaging with a trusted manufacturer ensures that the chemical properties, such as melting point (approx. 280°C dec.) and pH (6.8-7.0), are consistent and reliable.

For laboratories and research facilities in need of analytical-grade Sodium 4-Amino-1-Naphthalenesulfonate, exploring options from established chemical providers is recommended. If you are seeking to purchase this reagent, consider contacting us for a quote. We can connect you with trusted sources in China that prioritize quality and accuracy for your critical analytical needs.