Category
Voriconazole
CAS Number
137234-88-9
Molecular Formula
C₆H₇FN₂
Molecular Weight
126.13 g/mol
Synonym

4-Ethyl-5-fluoropyrimidine; Voriconazole Ethylfluoropyrimidine Impurity; Voriconazole Impurity C (IP); Ethylfluoropyrimidine; 4-Ethyl-5-fluoropyrimidine (As per USP Commenting Opening 51(3)); Voriconazole Ethylfluoropyrimidine Impurity (USP)

Keywords
Pharmaceutical Standards
Intermediates
Fine Chemicals
Impurities
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Voriconazole EP Impurity C is a designated related impurity of voriconazole listed in the European Pharmacopoeia (EP). It is typically formed as a by-product during chemical synthesis or through degradation of the active pharmaceutical ingredient. In pharmaceutical quality control, this impurity is analyzed and controlled within specified limits using chromatographic methods to ensure the purity, stability, and regulatory compliance of voriconazole drug substances and formulations.