6-Hydroxy-4-pyrimidinone

It serves as a precursor to the 5-(4-bromophenyl)-4,6-dichloropyrimidine core. 6-Hydroxy-4-pyrimidinone (specifically, 5-(4-bromophenyl)pyrimidine-4,6-diol or 5-(4-bromophenyl)-6-hydroxy-4(1H)-pyrimidinone serves as a critical intermediate in the synthesis of Macitentan.

API Name Macitentan
CAS No 1193-24-4
Molecular Formula C4H4N2O2
Molecular Weight 112.09 g/mol
Synonyms 4-hydroxy-1H-pyrimidin-6-one