title: A new pteridine from Tetrahymena.
mesh_terms: D002247:Carbon Isotopes; D002850:Chromatography, Gel; D002854:Chromatography, Paper; D010504:Periodic Acid; D011196:Potassium Permanganate; D011621:Pteridines / Q000032:analysis* / Q000096:biosynthesis; D013053:Spectrophotometry; D013768:Tetrahymena / Q000032:analysis* / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D011621:Pteridines; D011196:Potassium Permanganate; D010504:Periodic Acid