Acid Blue 90, known scientifically as CAS 6104-58-1 and by its common lab name Coomassie Brilliant Blue G-250, is a chemical compound with significant demand in both research and industrial sectors. Its primary applications in protein quantification via the Bradford assay and its utility as a dye make it a sought-after fine chemical. For procurement managers and laboratory heads, understanding how to effectively buy Acid Blue 90 is key to ensuring operational efficiency and research accuracy. As a direct manufacturer and supplier from China, we offer insights into what makes a quality product and a reliable supplier.

Defining Quality: What to Expect from Acid Blue 90

When you decide to buy Acid Blue 90, the first consideration should always be quality. For laboratory applications, particularly the Bradford assay and gel electrophoresis, high purity is non-negotiable. Impurities can interfere with the dye-protein binding, leading to inaccurate protein concentration measurements or faint protein bands on gels. Reputable suppliers will provide a Certificate of Analysis (CoA) with each batch, detailing key parameters such as:

  • Purity: Typically expressed as a percentage, for lab use, purity above 98% is generally desired.
  • Spectroscopic Data: Information on absorption maxima (λmax) can be indicative of the dye's integrity.
  • Solubility: Confirmation of solubility in water and relevant organic solvents.
  • Physical Appearance: Consistent dark blue-violet-brown solid form.

For industrial dyeing purposes, while exact purity might be expressed differently (e.g., strength), consistency in coloration and application performance is paramount. Understanding the product's Colour Index (C.I. 42655) also helps in cross-referencing applications and specifications.

The Role of the Supplier: Beyond Just Selling

Choosing a reliable Acid Blue 90 supplier is as important as selecting the right grade of the chemical itself. Consider these aspects:

  • Manufacturer vs. Distributor: Direct manufacturers, especially those in established chemical production hubs like China, often offer better pricing and more direct control over quality and supply. They can also provide more detailed technical support regarding the product's properties and synthesis.
  • Supply Chain Reliability: For businesses, consistent availability and timely delivery are critical. A supplier with robust logistics and inventory management can prevent costly production or research delays. Ask about their production capacity and typical lead times.
  • Technical Support and Customer Service: A good supplier will have knowledgeable staff who can answer questions about product specifications, applications, and safe handling. Responsive customer service, especially for international buyers, is invaluable.
  • Pricing and Value: While price is a factor, focus on the overall value. This includes the quality of the product, reliability of supply, and the support provided. Comparing quotes from multiple reputable Acid Blue 90 suppliers is a standard procurement practice.

Where to Buy Acid Blue 90?

When you are ready to purchase Acid Blue 90, look for established chemical manufacturers and suppliers who specialize in fine chemicals and biochemicals. We, as a manufacturer based in China, are dedicated to providing high-quality Acid Blue 90 to a global market. Our commitment to stringent quality control, competitive pricing for bulk orders, and efficient logistics ensures that our clients receive excellent value. We support diverse needs, from small research quantities to large industrial volumes.

By carefully evaluating the quality attributes of Acid Blue 90 and the service offered by suppliers, you can make an informed purchasing decision. This will ensure you obtain a product that meets your specific needs, whether for precise laboratory assays or robust industrial applications. Contact us today to inquire about purchasing Acid Blue 90 and experience the difference that quality and reliable supply can make.