Ketone aldehydes in animal tissues.

Abstract
The bis-2,4-dinitro-phenylhydrazone isolated from liver is the osazone of D-erythro-3-deoxyhexosulose. The free ketone aldehyde is identical with 3-deoxy-D-glucosone (deoxy-D-glucosulose). Chemical degradation, identification of formaldehyde, formic acid, and of an optically inactive osazone among the oxidation products, together with NMR [nuclear magnetic resonance], ORD [optical rotatory dispersion], IR [infrared], visible, and UV spectrometry and chemical analyses led to this conclusion.

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