2-(2-Phenyldiazenyl)propanedinitrile

2-(2-Phenyldiazenyl)propanedinitrile, also known as phenylazomalononitrile (CAS 6017-21-6), is employed to synthesize Riociguat (Adempas) as a key coupling building block, specifically in the formation of the 4,6-diaminopyrimidine core structure.

API Name Riociguat
CAS No 6017-21-6
Molecular Formula C9H6N4
Molecular Weight 170.17 g/mol
Synonyms 2-phenyldiazenylpropanedinitrile