3-(1,3-benzothiazol-2-yl)-2-(1,4-dioxo-1,2,3,4-tetrahydrophthalazin-6-yl)-5-[(E)-2-phenylethenyl]-3H-1,2$l^{5},3,4-tetrazol-2-ylium chloride
3-(1,3-benzothiazol-2-yl)-2-(1,4-dioxo-1,2,3,4-tetrahydrophthalazin-6-yl)-5-[(E)-2-phenylethenyl]-3H-1,2λ5,3,4-tetrazol-2-ylium chloride