For professionals in the chemical industry, particularly those involved in pigment and dye manufacturing, a thorough understanding of product specifications is paramount. Fast Blue, identified by its CAS number 74749-42-1, is a key intermediate that requires careful evaluation by prospective buyers. Knowing what to look for ensures you are sourcing the right material for your needs, guaranteeing the quality and consistency of your final colored products. This article outlines the critical specifications of Fast Blue that buyers should consider.

The most fundamental specification for any chemical intermediate is its identification. Fast Blue is recognized by its CAS No. 74749-42-1 and is also known by synonyms such as CI 37235. Its molecular formula is C14H12Cl2N4O2, with a molecular weight of 339.18. These details are crucial for accurate record-keeping and integration into complex synthesis pathways. Always verify these basic identifiers when you buy Fast Blue.

The physical characteristics of Fast Blue are also important. As described, it is typically a blue powder. The appearance is a primary visual indicator of product quality. A consistent, uniform blue color without significant discoloration or foreign particles suggests proper manufacturing and handling. Understanding this, we ensure our Fast Blue meets strict appearance standards.

The assay, often expressed as a percentage, indicates the purity of the compound. For Fast Blue CAS 74749-42-1, a common quality standard is an assay of ≥98.0%. This figure is vital for formulators as it dictates the effective concentration of the active ingredient in their processes. Buyers should always inquire about the assay percentage and request a CoA from their supplier to confirm this critical parameter. High purity is essential for predictable results in pigment and dye applications.

The application of Fast Blue is primarily within the pigments and dyes sector. This means its performance is judged by how well it imparts color, its stability under various conditions, and its compatibility with other formulation components. Buyers will often look for a Fast Blue that has been specifically produced for pigment or dye synthesis, ensuring it meets the rigorous demands of these industries. When you purchase Fast Blue, consider its intended use and confirm that the specifications align with your product development goals.

Packaging and storage conditions are also vital specifications. Fast Blue is commonly supplied in 25kg bags or fiber drums, designed to protect the product from moisture and contamination. Proper storage in a cool, dry place is recommended to maintain its quality over time. Reliable suppliers will provide clear guidance on these aspects.

In conclusion, when considering the purchase of Fast Blue CAS 74749-42-1, buyers must pay close attention to its identification, appearance, assay, intended applications, and recommended packaging. As a leading manufacturer and supplier, we are committed to providing detailed specifications and high-quality Fast Blue to meet the diverse needs of the pigment and dye industries. Contact us today to procure this essential chemical intermediate.