1,2,3-thiadiazole, 5,5'-(chloromethylene)bis[4-(4-methoxyphenyl)- 5,5'-(chloromethylene)bis[4-(4-methoxyphenyl)-1,2,3-thiadiazole] InChI=1/C19H15ClN4O2S2/c1-25-13-7-3-11(4-8-13)16-18(27-23-21-16)15(20)19-17(22-24-28-19)12-5-9-14(26-2)10-6-12/h3-10,15H,1-2H