1,2,4-Triazol-5-one
CAS 42131-33-9
Some of the most important molecules in medicine are astonishingly small.
Take 1,2,4-triazol-5-one. At first glance, it's just a tiny five-membered ring containing three nitrogen atoms, one carbon, and one oxygen. Yet this compact structure represents one of chemistry's favorite design strategies. Nitrogen-rich rings, known as heterocycles, are everywhere in modern pharmaceuticals and crop protection agents.
Published:
2026-08-06