MeSH definition : The 3-methyl ether of ETHINYL ESTRADIOL. It must be demethylated to be biologically
active. It is used as the estrogen component of many combination ORAL CONTRACEPTIVES.;
The 3-methyl ether of ETHINYL ESTRADIOL. It must be demethylated to be biologically
active. It is used as the estrogen component of many combination ORAL CONTRACEPTIVES.