5-({5-[(5-methoxy-2-thienyl)ethynyl-2-thienyl}ethynyl)-2-thiophenecarbaldehyde InChI=1/C18H10O2S3/c1-20-18-11-10-16(23-18)7-6-14-3-2-13(21-14)4-5-15-8-9-17(12-19)22-15/h2-3,8-12H,1H