What are the main uses of Androst-4-ene-3,17-dione (CAS: 63-05-8)?

Androst-4-ene-3,17-dione is primarily used in pharmaceutical research for hormone-related drug development, as a chemical intermediate in steroid synthesis, and in industrial applications for manufacturing anabolic steroids. It is also studied in research settings for its role in metabolic processes and may appear in some dietary supplements, though its use in food is limited and regulated.