Abstract
OF the three hitherto known bilene-b pigments only l-stercobilin and d-urobilin are optically active; i-urobilin has never been obtained in an optically active form. We now report the isolation of a dextrorotatory urobilin IXα and a racemic form of d-urobilin.
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References
Gray, C. H., and Nicholson, D. C., Nature, 180, 336 (1957).
Lowry, P. T., Ziegler, N. B., and Watson, C. J., Bull. Univ. Minn. Hosp. and Med. Found., 24, 166 (1952).
Gray, C. H., Nicholson, D. C., and Nicolaus, R. A., Nature, 181, 183 (1958).
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GRAY, C., NICHOLSON, D. Dextrorotatory Urobilin-IXα and Racemic d-Urobilin. Nature 181, 483–484 (1958). https://doi.org/10.1038/181483a0
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DOI: https://doi.org/10.1038/181483a0
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