Ever wonder why plants don't get sunburned? More protective molecules are being discovered and studied all the time and surely this is just the beginning!
http://www.acs.org/content/acs/en/pressroom/presspacs/2014/acs-presspac-october-29-2014/why-plants-dont-get-sunburn.html
http://pubs.acs.org/doi/abs/10.1021/ja5059026
Sinapic acid:
http://www.sigmaaldrich.com/content/dam/sigma-aldrich/structure7/099/mfcd00004401.eps/_jcr_content/renditions/mfcd00004401-medium.png
Sinapoyl Malate
http://wildflowerfinder.org.uk/Menu2/Family/FamilyInfo/FamilyInfoImages/SinapoylMalate.png