Abstract
IN previous communications1, I have described investigations of the chief blue pigment extracted by acids from the shell of the gastropod Haliotis cracherodii Leach. Important evidence has been produced by Tixier and Lederer2 against our view, based largely on spectroscopic findings, that this pigment is an indigoid. A joint study of the blue pigment, in collaboration with these workers, is in progress. In the meantime, we have obtained one of the accompanying yellow pigments in sufficient yield to perform spectrographic studies upon it, and upon its zinc complex.
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References
Comfort, A., Nature, 162, 851 (1948); Biochem. J., 45, 204 (1949).
Tixier, R., and Lederer, E., C.R. Acad. Sci., Paris, 228, 1669 (1949).
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COMFORT, A. A Subsidiary Shell Pigment of Haliotis cracherodii Leach. Nature 166, 194–195 (1950). https://doi.org/10.1038/166194b0
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DOI: https://doi.org/10.1038/166194b0
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