Azithromycin (CAS NO : 83905-01-5)

Zithromax (CAS 83905-01-5) remains a cornerstone of the API intermediates market due to its classification as a broad-spectrum azalide, with CDMOs increasingly focused on high purity fine chemicals (Pharma/API purity 99% | General Industry purity 98%) to mitigate the risk of degradation products like impurity J and impurity L. As a leading bulk chemical supplier, we observe that Hemomycin (CAS 83905-01-5) is seeing significant global sourcing shifts as manufacturers move toward custom synthesis services to ensure stringent polymorphic control between dihydrate and monohydrate forms, which is critical for meeting ICH Q7 regulatory compliance and USP-NF standards. Azithromycin Dihydrate (CAS 117772-70-0) continues to dominate therapeutic applications for respiratory and sexually transmitted infections, driving the need for reliable high purity fine chemicals (Pharma/API purity 99% | General Industry purity 98%) that can withstand intensive analytical validation via HPLC and NMR to ensure safety against adverse effects like QTc prolongation. We are an established global api supplier with >= 99% purity for semi-finished formulators, providing comprehensive analytical (HPLC/NMR/MS) and supporting Azithromycin COA/TDS/SDS region-specific regulatory support. reliable lead times, worldwide supply chain capabilities