In the realm of industrial chemicals, certain compounds possess a unique blend of reactivity and inherent color that makes them invaluable across multiple sectors. Solvent Orange 86, also chemically known as 1,4-Dihydroxyanthraquinone or Quinizarin (CAS 81-64-1), is a prime example. This vibrant orange crystalline powder, often sourced from reliable manufacturers in China, plays a crucial role as both a direct colorant and a critical intermediate in the synthesis of more complex dyes.

Textile Dye Synthesis: The Foundation of Vibrant Fabrics

The primary industrial significance of 1,4-Dihydroxyanthraquinone lies in its role as a precursor for synthesizing a wide array of high-performance textile dyes. Its anthraquinone structure is a versatile platform for creating VAT dyes, renowned for their exceptional durability and colorfastness, especially on cotton. It is also essential for producing disperse dyes, which are critical for coloring synthetic fibers like polyester, and reactive dyes that bond chemically with cellulose fibers for brilliant, wash-resistant colors. Manufacturers often purchase this intermediate in bulk to produce specific shades such as disperse blue HSR, disperse blue 5R, and acid anthraquinone blue R. If your company is involved in textile dye manufacturing, ensuring a steady supply of this key intermediate from a reputable supplier is vital for consistent product quality and output.

Industrial Coloring: Adding Hue to Plastics, Resins, and Oils

Beyond textiles, Solvent Orange 86 finds significant application in industrial coloring. Its inherent orange hue makes it suitable for directly coloring various plastics and resins. This is advantageous for products where aesthetic appeal and distinct color are important, ranging from consumer goods to industrial components. Furthermore, 1,4-Dihydroxyanthraquinone is used to color industrial oils and fuels. This application serves a practical purpose, aiding in the identification and segregation of different fuel types or industrial lubricants, thereby preventing mix-ups and ensuring operational safety. When seeking to buy this compound for these direct coloring applications, consistency in particle size and purity is key.

Understanding Purity Grades and Sourcing

1,4-Dihydroxyanthraquinone is typically available in different purity grades, commonly 96% and 99%. The choice of grade often depends on the specific application. For demanding synthesis of high-performance dyes, the 99% grade is generally preferred to ensure minimal impurities that could affect the final dye product. For direct coloring applications where extreme purity is less critical, the 96% grade might suffice and offer a more economical option. Procurement managers should always request a Certificate of Analysis (COA) from their supplier to confirm the exact specifications. Exploring options from manufacturers in China is often beneficial for securing competitive pricing and reliable availability for both grades.

In conclusion, Solvent Orange 86 (CAS 81-64-1) is a multifaceted chemical with a profound impact on the color industry. Its dual role as a foundational dye intermediate and a direct industrial colorant underscores its importance. Whether you are looking to manufacture dyes or color plastics and oils, understanding the capabilities and sourcing options for this compound is essential for optimizing your production processes.