experiments were performed to describe and compare the transplacental pharmacokinetics of the teratogen and transplacental carcinogen , diethylstilbestrol [ 4,4'-dihydroxy-alpha , alpha'-diethyl-trans , cis-stilbene ( des ) ] , and the endogenous estrogen , 17 beta-estradiol ( e2 ) .
C0012203
diethylstilbestrol
C0038333
stilbene