Metamizole

Metamizole Impurities

Metamizole (also known as dipyrone) is a non-opioid analgesic and antipyretic that is generally used for pain and fever management. Its impurity profile consists of structurally similar analogs, residual solvents, and degradation products. These impurity products are formed under stress conditions such as hydrolysis, oxidation, and photolysis. Typical degradation pathways of Metamizole API involve oxidative breakdown of the pyrazolone ring, hydrolytic cleavage of sulfonate groups, and rearrangement of aromatic substituents. These impurities may affect the potency, stability, and safety of the drug. Hence, all Metamizole impurities are structurally characterized and qualified according to ICH guidelines for toxicological assessment and analytical validation.

Metamizole EP Impurities

We provide the pharmacopeial and non-pharmacopeial Metamizole impurity compounds that are available in compliance with European Pharmacopoeia (EP) specifications. These standards can be used for support of analytical method development, impurity profiling, and long-term stability studies of the drug product. Therefore, the EP traceable products are synthesized and supplied with validated analytical data. The analytical data includes purity, structural confirmation, and spectral characterization of the product.

Metamizole Related Compounds

Structurally related compounds and synthetic analogs of Metamizole are included for impurity identification, toxicological qualification, and regulatory submission. These related compounds are used in forced degradation studies, genotoxicity assessments, and impurity threshold evaluations. Therefore, these products are essential for understanding the impurity profile and ensuring compliance with regulatory limits.

Metamizole Impurity Reference Standards

We synthesize Metamizole impurity reference standards that are provided with validated analytical data, including purity, NMR, MS, and full Certificates of Analysis. These standards are used for pharmaceutical research, method validation, and GMP-compliant quality control. In addition to this, we provide custom synthesis services for the EP/USP traceable products, which are available upon request. These products are routinely retested to ensure consistency and reliability.