For professionals in chemical procurement and research and development, the consistent availability of high-quality raw materials is non-negotiable. 4-Nitrophenyl Isothiocyanate (CAS 2131-61-5) is a prime example of such a compound, essential for numerous synthesis pathways. This guide aims to assist you in understanding the critical aspects of buying this valuable chemical, from its properties to sourcing strategies with reputable manufacturers and suppliers.

Understanding the Product: 4-Nitrophenyl Isothiocyanate

4-Nitrophenyl Isothiocyanate is typically supplied as a yellow solid, with a purity level often specified at 98.0% or higher. Its key characteristic is the reactive isothiocyanate group, which readily engages in nucleophilic addition reactions. This makes it an indispensable intermediate for creating more complex organic molecules. Its melting point is around 110-112 °C, and its molecular weight is approximately 180.18 g/mol.

Why is Purity Crucial?

In applications ranging from pharmaceutical synthesis to specialized material development, the purity of 4-Nitrophenyl Isothiocyanate directly impacts the success and reproducibility of your experiments and production runs. Impurities can lead to unwanted side reactions, lower yields, and compromised end-product quality. Therefore, when you buy this compound, always prioritize suppliers who can guarantee high purity and provide detailed Certificates of Analysis (CoA).

Key Applications Driving Demand

The demand for 4-Nitrophenyl Isothiocyanate is driven by its broad utility:

• Organic Synthesis: As a versatile building block, it enables the creation of thiourea derivatives, heterocyclic compounds, and other crucial organic structures.
• Pharmaceutical R&D: It is frequently used in the synthesis of potential drug candidates and pharmaceutical intermediates. Its reactive nature allows for the introduction of specific functional groups necessary for biological activity.
• Biochemical Research: Its ability to form stable conjugates with proteins and peptides makes it useful for labeling and studying biomolecular interactions.
• Material Science: Emerging applications include its use in creating polymers with unique properties.

Finding Reliable Suppliers and Getting a Price Quote

Sourcing 4-Nitrophenyl Isothiocyanate involves identifying trustworthy partners. Key considerations when looking for a supplier include:

• Geographic Location: Many reliable chemical manufacturers are based in China, offering competitive pricing and significant production capacities.
• Technical Support: A good supplier will offer technical assistance and be responsive to inquiries.
• Quality Documentation: Ensure they provide Certificates of Analysis (CoA), MSDS, and other relevant quality certifications.
• Packaging and Logistics: Confirm that they can meet your specific packaging requirements and have efficient shipping processes.

When you are ready to purchase, requesting a formal quote is the standard procedure. Clearly state the required quantity, purity specifications, and delivery timeline. Negotiating price based on order volume is common, making bulk purchases potentially more cost-effective.

For professionals seeking a stable and high-quality source of 4-Nitrophenyl Isothiocyanate, engaging with established chemical suppliers and manufacturers is the most strategic approach. By focusing on purity, understanding applications, and diligent supplier selection, you can ensure the success of your chemical procurement needs.