the products from rna labelled by [ 1- ( 14 ) c ] ethyl carbamate or ethyl [ carboxy- ( 14 ) c ] carbamate appeared chromatographically identical but could not be detected in the rna of mice given [ 1- ( 14 ) c ] ethanol or sodium hydrogen [ ( 14 ) c ] -carbonate .
C0041964
ethyl
C0006948
carbamate