Synonyms: 3H-Indolium,1,3,3-trimethyl-2-[2-(3-phenyl-2-pyrazolin-1-yl)vinyl]-, chloride (8CI);3H-Indolium,2-[2-(4,5-dihydro-3-phenyl-1H-pyrazol-1-yl)ethenyl]-1,3,3-trimethyl-, chloride(9CI); 2-[b-(3-Phenyl-2-pyrazolin-1-yl)vinyl]-1,3,3-trimethylindoliumchloride