2,5-dimethyl-3,6-bis(4-methylphenyl)imidazo[2,1-b][1,3]thiazole InChI=1/C21H20N2S/c1-13-5-9-17(10-6-13)19-15(3)23-20(16(4)24-21(23)22-19)18-11-7-14(2)8-12-18/h5-12H,1-4H imidazo[2,1-b]thiazole, 2,5-dimethyl-3,6-bis(4-methylphenyl)-