For any chemist involved in complex organic synthesis, understanding the properties and applications of versatile reagents is key to unlocking novel molecular structures and efficient reaction pathways. Chlorosulfonyl Isocyanate (CSI), identified by its CAS number 1189-71-5, is one such indispensable compound. Characterized by its dual chlorosulfonyl (-SO2Cl) and isocyanate (-NCO) functional groups, CSI exhibits a rich reactivity profile, making it a powerful tool in the hands of R&D scientists and product developers across various industries. As a dedicated manufacturer and supplier of high-purity chemicals from China, we are proud to offer CSI that meets rigorous quality standards.

The inherent reactivity of CSI stems from the electrophilic nature of both its sulfur and carbon centers. This allows it to readily participate in a wide array of reactions, including cycloadditions, nucleophilic additions, and rearrangements. For instance, CSI is a well-established reagent for the introduction of protected amino groups, a critical step in the synthesis of chiral molecules. Its participation in reactions with alkenes to form N-chlorosulfonyl-β-lactams is another testament to its synthetic utility. When researchers look to buy Chlorosulfonyl Isocyanate for their synthesis projects, they are seeking a reagent that offers predictability and efficiency.

The primary industrial applications of CSI, as detailed in our product offerings, revolve around its role as a key intermediate. In the pharmaceutical sector, it is vital for manufacturing antibiotics like Cefuroxime, where precise molecular construction is non-negotiable. Its utility extends to the agrochemical industry, contributing to the synthesis of effective crop protection agents, and into polymer science for creating advanced materials. For scientists and procurement managers, sourcing CSI from a reliable China manufacturer like us means securing a product with a minimum purity of 99% and benefiting from competitive pricing and a robust supply chain. We ensure that each batch of CSI delivered upholds the highest standards, facilitating successful and reproducible synthetic outcomes.

Navigating the global chemical market can be challenging, but partnering with a trusted supplier simplifies the procurement process. We understand the critical importance of consistent quality and timely delivery for your ongoing projects. Our commitment as a leading manufacturer of Chlorosulfonyl Isocyanate in China means we are equipped to handle orders of various scales, from grams for laboratory research to kilograms for industrial production. If you require a dependable source for CAS 1189-71-5, we invite you to reach out to our sales team for a comprehensive quote and to discover how our expertise can benefit your chemical synthesis endeavors.