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Ultraviolet absorption of flavonoids

I. Ionization constants of tectochrysin and chrysin

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Conclusions

The ionization constants of the 5-hydroxy groups in tectochrysin and chrysin have been determined spectrophotometrically, being 2.09×10−12 and 8.91×10−10, respectively. The 7-hydroxy group of chrysin has an ionization constant of 3.8 × 10−8.

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References

  1. L. Jard, The Chemistry of Flavonoid Compounds, Bd, T. A. Geissmann, Pergamon Press., 107, 1962.

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  5. N. A. Tyukavkina, V. I. Lutskii, A. K. Dzizenko, and V. A. Pentegova, KhPS [Chemistry of Natural Compounds], 4, 249, 1968.

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Khimiya Prirodnykh Soedinenii, Vol. 6, No. 1, pp. 24–27, 1970

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Tyukavkina, N.A., Pogodaeva, N.N. & Lutskii, V.I. Ultraviolet absorption of flavonoids. Chem Nat Compd 6, 20–23 (1970). https://doi.org/10.1007/BF00564149

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  • DOI: https://doi.org/10.1007/BF00564149

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