Benzene,1-[[4-[(2,5-dipropoxyphenyl)ethynyl]-2,5-dipropoxyphenyl]ethynyl]-4-[[4-[(4-ethynyl-2,5-dipropoxyphenyl)ethynyl]-2,5-dipropoxyphenyl]ethynyl]-2,5-dipropoxy-
CAS No. 406721-53-7