O-IDTBR

5，5'-((7，7'-(4，4，9，9-Tetraoctyl-4，9-dihydro-s-indaceno[1，2-b:5，6-b']dithiophene-2，7-diyl)bis(benzo[c][1，2，5]thiadiazole-7，4-diyl))bis(methanylylidene))bis(3-ethyl-2-thioxothiazolidin-4-one)