Sulfasalazine

Sulfasalazine Impurities

Sulfasalazine is an anti-inflammatory drug that is used in the treatment of rheumatoid arthritis, ulcerative colitis, and Crohn’s disease. Its impurity profile includes structurally related analogs, residual solvents, and degradation products. These impurities formed under stress conditions such as hydrolysis, oxidation, and photolysis. Typical degradation pathways involve hydrolytic cleavage of the azo bond, oxidative breakdown of the sulfonamide group, and rearrangement of aromatic substituents. These impurities may affect the potency, stability, and safety of the drug product. Thus, all impurities are structurally characterized and qualified according to ICH guidelines for toxicological assessment and analytical validation.

Sulfasalazine EP Impurities

We provide the pharmacopeial and non-pharmacopeial Sulfasalazine impurity compounds that are available in compliance with European Pharmacopoeia (EP) specifications. These standards can support analytical method development, impurity profiling, and long-term stability studies. EP traceable materials are supplied with validated analytical data, including purity, structural confirmation, and spectral characterization.

Sulfasalazine Related Compounds

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

Sulfasalazine Impurity Reference Standards

We also provide Sulfasalazine impurity reference standards along with validated analytical data, including purity, NMR, MS, and full Certificates of Analysis. These standards are essential in pharmaceutical research, method validation, and GMP-compliant quality control. EP/USP traceable entries are available upon request and are routinely re-tested to ensure consistency and reliability.