title: Photoelectron spectroscopy of carbonyls. Ureas, uracils, and thymine 1,2.
mesh_terms: D010777:Photochemistry; D013057:Spectrum Analysis; D013941:Thymine; D014498:Uracil / Q000031:analogs & derivatives*; D014508:Urea / Q000031:analogs & derivatives*
chemical_list: D014498:Uracil; D014508:Urea; D013941:Thymine