Abstract
THE presence of p-cresol in human urine, as well as in the urine of horses, cows and other animals, has been known for a long time. It occurs mainly as a salt of p-tolylsulphuric acid. According to Siegfried and Zimmermann1, the average concentration of p-cresol in normal human urine is of the order of 18 mgm. per litre, and in a man with an, adrenal tumour a value of 25 mgm. per litre has been reported2. In the urine of pregnant mares, Marshall has found that the concentration is 60 mgm. per litre3.
References
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Falsia, C.R. Soc. Biol., 111, 395 (1932).
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Dodds, Helv. Chim. Acta, 19, E 49 (1936).
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CAMPBELL, N., HEY, D. p-Cresol and Œstrone in Urine. Nature 153, 745 (1944). https://doi.org/10.1038/153745a0
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DOI: https://doi.org/10.1038/153745a0
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