the formation of epoxyethyl carbamate , the suggested electrophilic intermediate of urethane , was studied through measurements of 2-oxoethyl adducts to the amino acids cysteine , terminal valine and histidine in protein ( especially haemoglobin ) and to n-7 of guanine in dna in various tissues 9 h after treatment .
C0006948
carbamate
C0041964
urethane