title: Isolation and characterization of a vinylic tricarboxyl porphyrin from bile.
mesh_terms: D001646:Bile / Q000378:metabolism*; D002623:Chemistry Techniques, Analytical; D003377:Countercurrent Distribution; D004386:Duodenum / Q000378:metabolism; D006801:Humans; D006868:Hydrolysis; D007419:Intestinal Secretions / Q000378:metabolism; D013058:Mass Spectrometry; D011166:Porphyrins / Q000302:isolation & purification*; D011422:Propionates / Q000032:analysis; D014753:Vinyl Compounds / Q000032:analysis
chemical_list: D011166:Porphyrins; D011422:Propionates; D014753:Vinyl Compounds