title: PORPHINE-LIKE SUBSTANCES: PROBABLE SYNTHESIS DURING CHEMICAL EVOLUTION.
mesh_terms: D001669:Biochemical Phenomena; D001671:Biochemistry; D019418:Evolution, Chemical; D006861:Hydrogen Peroxide; D008027:Light; D010084:Oxidation-Reduction; D011166:Porphyrins; D011758:Pyrroles; D012106:Research; D014466:Ultraviolet Rays
chemical_list: D011166:Porphyrins; D011758:Pyrroles; C107018:porphine; D006861:Hydrogen Peroxide
keywords: BIOCHEMISTRY; BIOGENESIS; EXPERIMENTAL LAB STUDY; HYDROGEN PEROXIDE; LIGHT; OXIDATION-REDUCTION; PYRROLES; ULTRAVIOLET RAYS