For researchers and procurement managers in the life sciences and chemical industries, identifying a reliable source for specialized reagents like Fluorescein 5-isothiocyanate (5-FITC) is paramount. This vibrant organic compound, known by its CAS number 3326-32-7, is a cornerstone in fluorescent labeling techniques, enabling critical advancements in diagnostics, research, and development. If you're asking yourself 'where can I buy 5-FITC' or 'what is the best price for Fluorescein 5-isothiocyanate,' this guide is for you.

Understanding 5-FITC: Properties and Applications

Fluorescein 5-isothiocyanate (5-FITC) is an amine-reactive dye that readily conjugates to the amino groups of proteins, peptides, and other biomolecules. Its chemical structure, C21H11NO5S, with a molecular weight of approximately 389.4 g/mol, allows it to impart strong fluorescence (excitation/emission around 492/520 nm) to the molecules it labels. This makes it invaluable for techniques such as immunofluorescence microscopy, flow cytometry, and various immunoassay development. Its utility spans from fundamental biological research to the creation of diagnostic kits and probes.

Key Considerations When Purchasing 5-FITC

When you decide to buy 5-FITC, several factors should influence your choice of supplier. Firstly, purity is critical; high-purity 5-FITC (often specified as 95% or higher) ensures reliable and reproducible results in sensitive applications. Secondly, consistency of supply is crucial for ongoing projects. Sourcing from a reputable manufacturer in China can often provide a balance of quality and cost-effectiveness. Finally, understanding the price points for different quantities, from small research batches to bulk industrial orders, is essential for budget management.

Finding a Reputable 5-FITC Supplier

Identifying a dependable 5-FITC supplier is the first step to securing this vital reagent. Look for companies that specialize in organic reagents and fine chemical intermediates, demonstrating a strong track record in quality control and customer service. Websites and product catalogs often provide detailed specifications, including CAS numbers, molecular formulas, and typical purity levels. When you are ready to purchase Fluorescein 5-isothiocyanate, inquire about certificates of analysis (CoA) to verify product quality. Many suppliers offer competitive pricing for bulk orders, making it economical for larger R&D or production needs.

For businesses seeking a trusted manufacturer and supplier of 5-FITC in China, NINGBO INNO PHARMCHEM CO.,LTD. offers a comprehensive solution. We are committed to providing high-quality organic reagents with reliable delivery, supporting your research and development endeavors. Contact us today to discuss your specific requirements and obtain a quote for 5-FITC.