For R&D scientists and product formulators, understanding the precise technical specifications of chemical raw materials is fundamental to successful product development. Solvent Red 149 (CAS 71902-18-6), a high-performance fluorescent red dye, offers a unique combination of properties that make it invaluable for applications demanding superior coloration in plastics and resins. This guide aims to provide insights into its key characteristics and assist procurement professionals in identifying reliable suppliers for bulk purchases.

Technical Profile of Solvent Red 149

The chemical name for Solvent Red 149 is often associated with its vibrant, bluish-red shade. Its molecular formula, C23H22N2O2, and a molecular weight of approximately 358.43 g/mol, are indicative of its organic nature and solubility characteristics. Key technical data points that are crucial for formulators include:

• Appearance: Typically a bluish-red powder.
• Purity (Assay): High purity levels, often exceeding 99%, are standard for this dye, ensuring consistent color strength and performance.
• Heat Resistance: It exhibits good thermal stability, often rated up to 300°C-320°C in polymers like PS, making it suitable for high-temperature processing.
• Lightfastness: Generally possesses good lightfastness (e.g., 5-6 on the blue wool scale), ensuring color retention in finished products exposed to light.
• Solubility: Excellent solubility in organic solvents and various resins, crucial for achieving uniform coloration without precipitation.

These technical specifications are vital for R&D teams evaluating this dye for new formulations. When you plan to buy Solvent Red 149, always request a detailed Technical Data Sheet (TDS) and Certificate of Analysis (CoA) from the manufacturer.

Applications Driving Demand

The superior performance profile of Solvent Red 149 makes it a sought-after colorant in several demanding applications:

• Plastic Industry: Widely used to color engineering plastics such as ABS, PS, PMMA, PC, and PET. It provides bright, fluorescent red shades, enhancing the aesthetic appeal and brand recognition of plastic products. Procurement managers often seek this dye for high-volume plastic component manufacturing.
• Resin Coloration: Ideal for transparent applications where a brilliant red hue is desired, including in cast acrylics and certain polyester resins.
• Fiber Dyeing: Its ability to be dissolved makes it suitable for coloring synthetic fibers, contributing to vibrant textile outputs.

For product developers, understanding the compatibility and performance nuances in each application is key. Consulting with chemical suppliers can provide valuable insights, especially when exploring bulk purchase options.

Procuring Solvent Red 149 from a Reputable Manufacturer

When sourcing Solvent Red 149, identifying a trustworthy manufacturer and supplier is essential. A good supplier will offer:

• Bulk Availability: Ensuring you can secure the quantities needed for your production runs.
• Competitive Pricing: Especially for large orders, obtaining the best possible price without compromising quality is a significant factor.
• Quality Assurance: Products that consistently meet stated specifications and certifications.
• Technical Expertise: Support to help you integrate the dye effectively into your formulations.

By focusing on suppliers who specialize in dyes and colorants, and ideally have a strong presence in the global market, you can secure a reliable source for this critical raw material.

In summary, Solvent Red 149 offers exceptional coloring properties for a variety of demanding applications. By understanding its technical specifications and the benefits of sourcing from qualified manufacturers, R&D professionals and purchasing managers can ensure the quality and visual appeal of their final products.