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The in vitro metabolism of 2‐nitroso‐1‐phenylpropane dimer by fortified 9000g supernatants from rabbit liver

2‐Nitroso‐1‐phenylpropane dimer, a postulated metabolic product of amphetamine, was metabolized by fortified 9000 g supernatants from rabbit liver, mainly by oxidation on the carbon beta to the nitrogen to form a ‘β‐hydroxylated nitroso dimer’. The corresponding nitro compound, ketone and alcohol were also products, the latter two but not the former being cofactor dependant. The nitroso compound was not metabolically reduced under the conditions used.