Stilbostat is a synthetic compound that functions both as an estrogen analogue and a targeted alkylating agent. It exhibits an alkylating potency comparable to other cytostatic compounds, while its mechanism does not involve binding to estrogen receptors or metabolic cleavage into diethylstilbestrol. Researchers commonly use Stilbostat in experimental models to study hormone-responsive tumor growth, often in combination with immune modulators to evaluate enhanced antitumor effects under varying endocrine conditions.