A compound was isolated as a minor constituent in an extract from garden cress. Its spectra are shown here.
(1) Look at each spectrum individually, and list the structural characteristics you can determine from that spectrum.
(2) Look at the set of spectra as a group, and propose a tentative structure.
(3) Verify that your proposed structure accounts for the major features of each spectrum.

100 80 e 60 E 40 20 17 M 0 20 30 40 50 60 70 80 90 100 10 120 130 140 150 160 wavelength (um) 5 10 12 13 14 15 16 100 60 N 4000 3500 2500 2000 1800 1600 1400 1200 1000 600 wavenumber (cm) 0 4 6 10 (ppm)