MSX-130 is an imidazole.1 When used as the host in a host:guest complex with trichloroacetic acid, the complex displays excitation/emission maxima of 382/466 nm, respectively.
1.Sakaino, Y., Shimizu, N., Takahashi, N., et al.Complex formation of imidazole derivatives and properties of the productsMol. Cryst. Liq. Cryst.187(1)145-153(1990)
















