Definition: Compounds containing 1,3-diazole, a five membered aromatic ring containing two nitrogen atoms separated by one of the carbons. Chemically reduced ones include IMIDAZOLINES and IMIDAZOLIDINES. Distinguish from 1,2-diazole (PYRAZOLES).
EXP3174 [ 2-n-butyl-4-chloro-1-((2'-(1H-tetrazol-5-yl)biphenyl-4-yl)methylll)imidazole-5-carboxylic acid,E-3174,EXP 3174,EXP-3174 ] structure given in first source