Our 4-Chloropyrrolidine CAS No. 3680-69-1 is manufactured to the highest industry standards, ensuring purity and consistency in every batch. As a leading supplier of fine chemicals and intermediates, we pride ourselves on providing our customers with best-in-class products that meet their specific specifications and requirements. 4-Chloropyrrolidine is an important component in the synthesis of tofacitinib, which is known for its efficacy in reducing inflammation and pain associated with various autoimmune diseases. By using our high-quality intermediates, pharmaceutical manufacturers can produce tofacitinib and other related compounds with confidence, knowing that the purity and reliability of our 4-chloropyrrolidine will contribute to the overall quality of the final product.JDK owns the first-class production facilities and Quality management equipments, which assures the stable supply of API intermediates. Professional team assure R&D of the product. Against both, we are searching for CMO & CDMO in domestic and international market.