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).
calmidazolium [ 1-(bis(chlorophenyl)methyl)-3-(2,4-dichloro-beta-(2,4-dichlorobenzyloxy)phenethyl)imidazolinium chloride,R 24571,R-24571 ] powerful inhibitor of or red blood cell Ca++-ATPase & Ca++ transport into inside-out red blood cell vesicles; RN refers to chloride; structure in first source; an antagonist of calmodulin