Macitentan Pyrimidine Amine Impurity

Macitentan Pyrimidine Amine Impurity is a pharmaceutical impurity/reference standard associated with Macitentan. It has CAS No. 1393813-42-7, Molecular Formula: C₁₃H₁₄BrClN₄O₂S, and Molecular Weight: 405.7 g/mol. It is commonly used as a pharmaceutical impurity standard, analytical reference material, and quality-control standard for the identification and quantification of related substances during Macitentan drug substance and drug product analysis.