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. 2023 Mar 4;24(5):4970. doi: 10.3390/ijms24054970

Figure 5.

Figure 5

The chemical structure and formation reaction of metal ion complexes of maltol. An octahedral metal ion complex of neutral charge is formed at physiological pH between maltol and trivalent metal (M) ions such as iron, gallium, aluminum and indium. Similar trivalent neutral metal ion complexes are formed using deferiprone (L1).