Abstract

N-hydroxy-2-aminofluorene was found in the urine of guinea pigs intraperitoneally injected with 2-aminofluorene. The hydroxylamine was oxidized to the nitroso analogue and this was identified and determined in the carbon tetrachloride extract by its characteristic UV absorption, by thin-layer chromatography, and by the formation of a diazo compound in the reaction with nitrous acid. Only a small fraction of the 2-aminofluorene injected appeared in the urine as N-hydroxy derivative.

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