What is Arimidex?
Anastrozole (Arimidex) is a third-generation non-steroidal triazole aromatase inhibitor — reversible competitive CYP19A1 inhibition (~97% estrogen suppression). Most widely prescribed AI in oncology. Research: ER+ breast cancer, T:E2 ratio, reversible vs irreversible AI pharmacology, male hypogonadism. CAS 120511-73-1.
Research Applications
Reversible CYP19A1 Inhibition
Competitive Type II AI — ~97% estrogen suppression, washout studies
Breast Cancer Research
Standard-of-care AI reference — ER+ breast cancer models
T:E2 Ratio Manipulation
Testosterone/estradiol titration — male androgen research
AI Class Comparison
Anastrozole (reversible) vs exemestane (irreversible)
Male Hypogonadism
Aromatase excess — estrogen-driven gonadotropin suppression
Quick Specs
| Form | C₁₇H₁₉N₅ |
| Purity | ≥99% by HPLC — every batch |
| CAS Number | 120511-73-1 |
| Molecular Weight | MS molecular weight confirmed — every batch |
| Specification | ≥99% by HPLC — every batch |
| Shelf Life | 24 months unopened |
| Storage | Room temperature sealed | cool, dry storage |
| Manufacture | In-house synthesis — Qingdao, China |
| Brand | China |
Certificate of Analysis (COA)
Frequently Asked Questions
🧪 Peptide Research Tools: Use QSC's free peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.
🌍 Domestic shipping: 🇺🇸 USA 5–7 days
🌏 International shipping: 7–14 days