Category Product CAS No. SERMS Tamoxifen Citrate  (Nolvadex) 54965-24-1 Clomifene Citrate (Clomid) 50-41-9 Toremifene Citrate (Fareston) 89778-27-8 Raloxifene hydrochloride 82640-04-8 AI-Aromatase Inhibitor Letrozole (Femara ) 112809-51-5 Anastrozole (Arimidex) 120511-73-1 Formestane 566-48-3 Exemestane (Aromasin) 107868-30-4