Exemestane 100G Raw Powder

Exemestane 100G Raw Powder | Aromasin

QSC Exemestane (Aromasin) (Steroidal Aromatase Inhibitor (Irreversible / Suicide AI)) — ≥99% HPLC purity, MS confirmed, Janoshik COA. 100G bulk. Research use only.

✓ 99%+ Purity	✓ COA Available
✓ Free Shipping on All Orders	✓ Ships from China (🇨🇳)

$1,200

QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SynthesisChina Warehouse

What is Exemestane (Aromasin)?

Exemestane (Aromasin) is a steroidal suicide aromatase inhibitor — irreversibly inactivates aromatase (CYP19A1) via covalent binding. Structurally similar to androstenedione. Research tool for aromatase enzymology, irreversible enzyme inactivation kinetics, estrogen suppression, and steroidal vs non-steroidal AI comparison. Research use only.

Research Applications

Irreversible Aromatase Inactivation

Suicide substrate kinetics, kcat/kinact determination, CYP19A1 covalent inhibition

Steroidal vs Non-Steroidal AI

Exemestane vs anastrozole/letrozole — mechanism, selectivity, recovery studies

Estrogen Suppression

Estradiol reduction kinetics, tissue estrogen levels, receptor occupancy

Bone Health Research

Estrogen-dependent bone turnover — aromatase inhibition effects on BMD

Post-Aromatase Recovery

New aromatase synthesis after irreversible inactivation — enzyme recovery timeline

Quick Specs

Form	Raw bulk powder (crystalline/amorphous)
Purity	≥99% by HPLC — every batch
CAS Number	107868-30-4
Molecular Formula	C₂₀H₂₄O₂, MW 296.4
Identity	MS molecular weight confirmed — every batch
Compound Type	Steroidal Aromatase Inhibitor (Irreversible / Suicide AI)
COA	Janoshik-independent, publicly verifiable
Manufacture	In-house synthesis — Qingdao, China
Storage	Room temperature sealed \| cool, dry storage
Shelf Life	24 months (unopened)

Certificate of Analysis (COA)

For the latest Certificate of Analysis (COA), please email us with your request.

Frequently Asked Questions

How is this raw powder supplied?

QSC raw powder compounds are supplied as bulk crystalline or amorphous powder in a sealed, labelled container at the stated quantity. No reconstitution is required — the powder is ready for weighing and use in research applications.

How should this raw powder be stored?

Store at room temperature (15–25°C) in a cool, dry place away from moisture, heat, and direct light. Keep in the original sealed container. Properly stored raw powder remains stable for 2–3 years.

What purity is this QSC raw powder and how is it verified?

All QSC raw powder compounds are tested to ≥99% purity by HPLC on every production batch, with MS-confirmed identity. COA is published on the product page and independently verifiable at verify.janoshik.com.

🧪 Peptide Research Tools: Use QSC’s free peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.

🌏 Shipping: China warehouse — 7–14 day global delivery