title: Presence of isomers in quinomycin E.
mesh_terms: D000900:Anti-Bacterial Agents / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D007536:Isomerism; D011810:Quinoxalines / Q000032:analysis
chemical_list: D000900:Anti-Bacterial Agents; D011810:Quinoxalines