1,4-benzenedicarboxaldehyde, 2,5-bis(hexyloxy)- 2,5-bis(hexyloxy)terephthalaldehyde InChI=1/C20H30O4/c1-3-5-7-9-11-23-19-13-18(16-22)20(14-17(19)15-21)24-12-10-8-6-4-2/h13-16H,3-12H2,1-2H