In the vast landscape of industrial chemicals, specialized dyes play a crucial role in achieving desired aesthetic and functional properties in a multitude of products. Solvent Yellow 56, identified by its CAS number 2481-94-9, is one such compound, widely recognized for its efficacy as a solvent dye. This article delves into its chemical profile, primary uses, and the advantages of sourcing it from reputable manufacturers.

Chemically, Solvent Yellow 56 is characterized by its molecular formula C16H19N3, and it presents as a deep orange to very deep orange solid. Its high purity, typically assaying at ≥97.0%, makes it suitable for demanding applications where color consistency and intensity are critical. The dye exhibits good solubility in various organic solvents, which is a defining characteristic of solvent dyes, allowing for its seamless integration into non-aqueous systems. Key physical properties include a melting point range of 94-96°C, contributing to its utility in processes involving elevated temperatures.

The primary application area for Solvent Yellow 56 is the coloration of polyester fiber pulp. This process imbues the fibers with a permanent, vibrant yellow hue that resists fading from light exposure and is stable during various textile treatments. Beyond textiles, its excellent compatibility with polymers makes it a popular choice for coloring plastics, including polystyrene (PS), high-impact polystyrene (HIPS), rigid polyvinyl chloride (RPVC), and styrene-acrylonitrile (SAN). Its application extends to waxes, oils, lubricants, and fuels, where it provides a distinctive coloration and can aid in product identification.

For B2B buyers, understanding the market for Solvent Yellow 56 involves identifying reliable manufacturers and suppliers. Companies that offer competitive pricing, stringent quality control, and dependable supply chains are highly sought after. When looking to purchase Solvent Yellow 56, engaging with chemical suppliers who provide comprehensive product documentation, such as TDS and MSDS, is essential for ensuring safe handling and optimal application. As a key intermediate chemical, its consistent availability and quality are vital for uninterrupted production cycles.