Masteron Enanthate (Drostanolone Enanthate) 200mg/mL Injectable | 10-Vial Kit

Masteron Enanthate (Drostanolone Enanthate) 200mg/mL — long-acting anti-oestrogenic DHT-derived AAS, 10-vial kit. ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.

✓ 99%+ Purity ✓ COA Available
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$680

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SKU: QSC-MASTERON-E-200MG-ML-10VIAL
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QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House Synthesis5-Region Domestic Shipping

What is Masteron Enanthate (Drostanolone Enanthate)?

Masteron Enanthate (Drostanolone Enanthate — long-acting DHT-derived AAS (injectable)) is the enanthate ester of drostanolone — C₂₉H₄₆O₃, MW 446.7. Longer-acting ester than propionate (peak ~3–4 days, active ~10–14 days) allowing less frequent administration. DHT-derived with 2α-methyl modification providing aromatase inhibitory activity. Does not aromatise to oestrogen. Partial oestrogen receptor antagonism alongside androgenic activity.

Research Applications

Long-Acting Aromatase Inhibitor AAS

Extended-release drostanolone — aromatase inhibition sustained over 2 weeks

Anti-Oestrogenic Anabolic Model

Non-aromatising steroid with oestrogen-suppressing properties — fewer injections vs propionate

DHT-Derived Androgen Biology

2α-methyl DHT derivative — AR binding and androgenic signalling research

Mast P vs Mast E Comparison

Short-acting propionate vs long-acting enanthate ester pharmacokinetic comparison

Lean Mass & Oestrogen Control Research

Combined anabolic and anti-oestrogen activity in research models

Quick Specs

Form Oil-based injectable solution
Concentration 200mg/mL
CAS 472-61-145
Molecular Formula C₂₉H₄₆O₃
MW 446.7 Da
Purity ≥99% by HPLC — every batch
Identity MS molecular weight confirmed — every batch
COA Janoshik-independent, publicly verifiable
Vehicle Pharmaceutical-grade carrier oil + benzyl alcohol/benzoate
Aromatisation None — inhibits aromatase
Storage Room temp sealed | 2–8°C recommended
Shelf Life 24 months (unopened)

Certificate of Analysis (COA)

For the latest Certificate of Analysis (COA), please email us with your request.
🧪 Peptide Research Tools: Use QSC’s free peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.
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🧬 PubMed Research — Enanthate
Search PubMed ↗
346 publications found Last 10 years 3 most recent shown
41746363
[Male contraception-scientific foundations and contemporary progress].
Zitzmann M · Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2026 View ↗

Showing 3 of 346 for Enanthate

View all on PubMed ↗

Source: PubMed / NCBI  ·  Last 10 years  ·  Refreshed every 24 hours  ·  For research reference only — not clinical guidance.

⚠️ RESEARCH USE ONLY — NOT FOR HUMAN CONSUMPTION

QSC products are strictly for in vitro and in vivo laboratory research. Not intended for diagnostic, therapeutic, or personal use.

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Research Use Disclaimer

All QSC products are strictly for laboratory, scientific, and research use only. They are not for human consumption, medical treatment, diagnosis, or disease prevention.

By purchasing or using QSC products, you confirm:

  • You are a qualified researcher or acting under the supervision of one.
  • Products will only be used for legitimate research purposes.
  • Products are not evaluated by the FDA or any regulatory authority for human use.
  • You assume all responsibility for legal compliance, proper handling, and storage.
  • You meet the legal age requirement in your jurisdiction.
No Warranty: Products are sold “as is,” with no express or implied warranties regarding efficacy, safety, or suitability. Results in research may vary. QSC is not responsible for outcomes, interpretations, or conclusions drawn from any studies conducted using these products.
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General Safety & Handling

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Not for Human Use

These compounds are for research only. Any off-label, personal, or clinical use is strictly outside the intended scope of supply.

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PPE Required

Always use appropriate personal protective equipment (gloves, lab coat, eye protection) when handling peptides.

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Storage Compliance

Follow product-specific storage conditions to maintain identity, purity, and biological activity.

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Proper Disposal

Dispose of all materials in accordance with institutional biosafety, chemical waste, and hazardous material protocols.

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Verify Quality

Janoshik COAs are available on every product page. Verify batch identity (MS confirmed) and purity (≥99% HPLC) before use.

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Peptide Storage Guidelines

🌑 Light-protected💧 Low moisture🌡️ Stable temperature🔬 Sterile handling

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