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Stabilization of 5-aminolevulinic acid by the zinc(II) ion in an aqueous solution | Sakiyama | European Journal of Chemistry

Stabilization of 5-aminolevulinic acid by the zinc(II) ion in an aqueous solution

Hiroshi Sakiyama, Hidetatsu Inoue, Md.Kudrat-E-Zahan Md.Kudrat-E-Zahan, Shoichi Hueki, Naohisa Tachiya, Yuzo Nishida

Abstract


It is known that 5-aminolevulinic acid (5-ALA) is not stable in an aqueous solution because of the auto-condensation reaction between two 5-ALA molecules; however, in this study, 5-ALA was stabilized by the zinc(II) ion in an aqueous solution of neutral pH. This stabilization effect was ascertained by UV-Vis Spectroscopy and 1H and 13C NMR Spectroscopy.

1_4_373_376_800


Keyword(s)


5-aminolevulinic acid; Zinc(II) ion; UV-VIS absorption spectra; NMR; pH

European Journal of Chemistry, 1 (4), (2010), 373-376

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DOI: http://dx.doi.org/10.5155/eurjchem.1.4.373-376.101


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