title: Effect of urea on the epimerisation of chlortetracycline hydrochloride by UV light.
mesh_terms: D002751:Chlortetracycline / Q000528:radiation effects*; D007700:Kinetics; D011830:Radiation Effects; D012995:Solubility; D014466:Ultraviolet Rays; D014508:Urea
chemical_list: D014508:Urea; D002751:Chlortetracycline