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  • Author or Editor: T. Ramamurthy x
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Abstract  

The exchange reaction between14CO2 and sodium salt of p-fluorophenyl acetic acid was found to proceed with greater than 50% isotope incorporation when salt to CO2 ratio was 61. The carboxyl-C-14 labelled p-fluorophenyl acetic acid was isolated in a pure form using small chemical concentrations of radioactive14CO2 of high specific activity /30 mCi/mmol/.

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Abstract  

Carbon-14 labelled p-fluorophenylacetic acid was prepared by heating its sodium salt with14CO2 at 325 °C. The labelled acid after isolation from the reaction mixture was degraded by reaction with sodium azide. From the radioactivity measurements it was observed that no scrambling of14C had taken place and the acid could be designated as carboxyl-14C.

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