[ 1- ( 14 ) c ] ethyl carbamate , ethyl [ carboxy- ( 14 ) c ] carbamate , [ 1- ( 14 ) c ] ethanol and sodium hydrogen [ ( 14 ) c ] carbonate were injected intraperitoneally into c57 mice , and nucleic acids and proteins were separated from the liver and lungs with phenol as described by kirby ( 1956 ) .
C0041964
ethyl carbamate
C0006948
carbamate