M8843——bis(2-butyloctyl) 5,5′-dibromo-2,2′-bithiophene-4,4′-dicarboxylate

M7178——3,9-bis(trimethylstannane)-5,5,11,11-tetrakis(5-(2-ethylhexyl)-thiophen-2-yl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]- dithiophene