Levothyroxine

Levothyroxine Impurities

Levothyroxine impurities include synthetic intermediates, process-related compounds, and degradation products that may arise during manufacturing, formulation, or storage. As a synthetic levo-isomer of thyroxine (T4) used in the treatment of hypothyroidism and thyroid cancer, impurity profiling is essential to ensure product safety, therapeutic efficacy, and regulatory compliance. All impurity compounds are structurally characterized and qualified under ICH guidelines for toxicological evaluation and analytical validation.

Levothyroxine EP Impurities

We offer pharmacopeial and non-pharmacopeial Levothyroxine impurity compounds that conform to European Pharmacopoeia (EP) specifications. These standards support method development, impurity profiling, and stability studies. EP traceable compounds are available upon request and are supplied with validated analytical data including HPLC purity, NMR, and MS characterization.

Levothyroxine Related Compounds

Our catalog includes structurally related compounds and synthetic intermediates associated with Levothyroxine. These compounds are used in forced degradation studies, impurity identification, and toxicological qualification. Related substances may include iodinated analogs, positional isomers, and stereoisomeric variants. All entries are supported by comprehensive analytical documentation and meet international regulatory expectations.

Levothyroxine Impurity Reference Standards

Levothyroxine impurity reference standards are supplied with validated analytical data including NMR, MS, and HPLC purity. These compounds are used in pharmaceutical R&D, method validation, and GMP-compliant quality control. EP/USP traceable entries are available upon request. All products are re-tested at regular intervals to ensure consistency and reliability.