4-Methoxyestrone
4-Methoxyestrone (4-ME1) is an endogenous, naturally occurring methoxylated catechol estrogen and metabolite of estrone that is formed by catechol O-methyltransferase via the intermediate 4-hydroxyestrone. It has estrogenic activity similarly to estrone and 4-hydroxyestrone. See also 2-Methoxyestradiol 2-Methoxyestriol 2-Methoxyestrone 4-Methoxyestradiol References Phenols Estranes Estrogens Ethers Human metabolites Ketones Steroid hormones