In the rigorous world of pharmaceutical manufacturing, the identification and control of impurities are paramount to ensuring drug safety and efficacy. For manufacturers working with COX-2 inhibitors like Celecoxib, understanding related impurities is a critical aspect of quality assurance. One such important compound is Celecoxib Impurity B, also known by its chemical name N-De(4-sulfonaMidophenyl)-N'-(4-sulfonaMidophenyl) Celecoxib, with CAS Number 331943-04-5.

Celecoxib Impurity B is recognized as an isomeric impurity of Celecoxib. Its significance lies not only in its presence as a related substance but also in its own potential pharmacological activity. Studies indicate that this specific impurity may retain selective inhibitory activity against human cyclooxygenase-2 (COX-2), the primary target of Celecoxib. Therefore, accurate quantification and control of this impurity are essential for meeting regulatory standards and ensuring the therapeutic profile of the final drug product.

For pharmaceutical companies and research institutions, sourcing high-purity Celecoxib Impurity B is crucial. It serves as an indispensable reference standard for analytical method development, validation, and routine quality control testing. By using a reliable reference standard, manufacturers can accurately detect and quantify this impurity in their API batches and finished dosage forms, thereby maintaining compliance with pharmacopoeial limits and regulatory requirements.

When selecting a supplier for critical pharmaceutical intermediates like Celecoxib Impurity B, prioritizing quality and reliability is key. Manufacturers often look for suppliers who can demonstrate consistent product quality, robust analytical data (such as COA, NMR, HPLC), and a stable supply chain. Companies based in China are increasingly becoming global leaders in the production of fine chemicals and pharmaceutical intermediates, offering competitive pricing and efficient delivery.

NINGBO INNO PHARMCHEM CO.,LTD. is a dedicated manufacturer and supplier in China committed to providing high-quality pharmaceutical intermediates. We understand the stringent demands of the pharmaceutical industry and ensure that our Celecoxib Impurity B (CAS 331943-04-5) meets the highest purity standards. Whether you are involved in early-stage drug discovery, process development, or routine quality control, we are your trusted partner. We invite you to buy Celecoxib Impurity B from us and experience our commitment to excellence. For bulk inquiries and to discuss your specific needs, please feel free to contact us for a competitive quote.