Category
Vonoprazan
CAS Number
928324-80-5
Molecular Formula
C₁₆H₁₀ClFN₂O₃S
Molecular Weight
364.78 g/mol
Synonym

2-Chloro-5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrole-3-carbaldehyde; 1H-Pyrrole-3-carboxaldehyde, 2-chloro-5-(2-fluorophenyl)-1-(3-pyridinylsulfonyl); 2-Chloro-5-(2-fluorophenyl)-1-[(pyridin-3-yl)sulfonyl]-1H-pyrrole-3-carboxaldehyde

Keywords
Pharmaceutical Standards
Intermediates
Fine Chemicals
Metabolites.
slide.1

Vonoprazan Impurity 21 is a specific related compound or degradation impurity identified during the synthesis or stability testing of vonoprazan. In pharmaceutical analysis, such impurities are carefully monitored because they can affect the safety, purity, and quality of the final drug product. Impurity 21 is usually a laboratory or regulatory reference name rather than a marketed substance, and its exact structure can vary depending on the manufacturer or pharmacopeial documentation. It is mainly used in analytical research, quality control, and regulatory studies for vonoprazan production.