For professionals engaged in the synthesis and formulation of dyes, a deep understanding of the raw materials is fundamental. Among the array of essential chemical intermediates, 6-Amino-1-Naphthalenesulfonic Acid, identified by CAS 81-05-0, stands out for its critical role in creating vibrant and durable colors. As a leading manufacturer and supplier in this sector, we aim to equip you with the knowledge to make informed purchasing decisions about this important compound.

What is 6-Amino-1-Naphthalenesulfonic Acid?

6-Amino-1-Naphthalenesulfonic Acid, also known by synonyms such as Dahl's Acid or D Acid, is a chemical compound derived from naphthalene. Its molecular formula is C10H9NO3S, with a molecular weight of 223.25. Typically appearing as a white crystalline powder, its chemical structure makes it an invaluable intermediate in the dye industry. It is primarily used in the synthesis of various dye classes, including acidic, reactive, and indirect dyes, which are essential for coloring textiles, leather, and paper.

Key Properties for Procurement

When considering to buy 6-Amino-1-Naphthalenesulfonic Acid, key technical specifications are vital for ensuring it meets your application needs. These typically include:

  • Appearance: White crystalline powder. This physical form is generally easy to handle and integrate into production processes.
  • Purity: A minimum content of 98% is common, with HPLC purity often specified at 99% or higher. High purity is crucial for achieving consistent color shades and predictable performance in dyes.
  • Moisture Content: Usually kept very low, often 0.1% maximum, to ensure stability and prevent unwanted reactions.
  • Insoluble Matter: Minimal levels, typically 0.1% maximum, indicate a cleaner product suitable for sensitive synthesis.

These properties are critical for R&D scientists and procurement managers evaluating suppliers. Understanding these specifications helps in comparing offerings and ensuring you purchase a product that aligns with your manufacturing requirements.

Applications in the Dye Industry

The versatility of 6-Amino-1-Naphthalenesulfonic Acid is evident in its broad application spectrum:

  • Acid Dyes: Used for dyeing wool, silk, nylon, and other protein fibers.
  • Reactive Dyes: Known for forming covalent bonds with fibers, offering excellent fastness on cotton and cellulosic materials.
  • Indirect Dyes: Employed in various coloring processes where direct fiber bonding is not the primary mechanism.

As a manufacturer and supplier, we recognize the importance of this intermediate in bringing vibrant and lasting colors to countless products. Ensuring a reliable supply of CAS 81-05-0 is our commitment to supporting the innovation and growth within the dye manufacturing sector.

If you are looking to purchase this essential intermediate, we are your trusted source for quality and consistency. Our manufacturing expertise ensures you receive a product that meets rigorous industry standards.