;1,2-二氮唑(1,2-Diazole)；二氮二烯五环

Pyrazole is a heterocyclic organic compound characterized by a ring structure composed of three carbon atoms and two nitrogen atoms in adjacent positions, with the molecular formula C3H4N2.1H-pyrazole is the 1H-tautomer of pyrazole. It is a conjugate base of a pyrazolium. It is a conjugate acid of a pyrazol-1-ide. It is a tautomer of a 3H-pyrazole and a 4H-pyrazole

吡唑拥有多种生理作用，包括止痛、抗发炎、退烧、抗心律失常、镇静、松弛肌肉、精神兴奋、抗痉挛、一元胺氧化酶抑制剂，抗糖尿病和抗菌。吡唑可作为某些医药、农药的中间体