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    • 🇺🇸 USA Domestic
    • 🇪🇺 EU Domestic
    • 🇬🇧 UK Domestic
    • 🇦🇺 AU Domestic
    • 🇨🇦 CA Domestic
    • 🇨🇳 CH International
  • Compounds
    • Categories
      • Anti-Aging & Longevity
      • Cognitive & Nootropic
      • Cosmetics
      • Performance & Hormone Optimization
      • Recovery & Healing
      • Weight Loss & Metabolic
    • Peptides
      • Peptide Blends
    • Orals
    • Oils
    • Raws
  • Track Order
  • Contact
    • About QSC
    • Certificate of Analysis
    • Price List
    • FAQ
    • Privacy Policy
    • Return, Refund & Shipping Policy
    • Terms and Conditions
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≥99% Purity Verified • COA on Every Product
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Domestic Warehouses: 🇺🇸 🇪🇺 🇬🇧 🇨🇦 🇦🇺 🇸🇬 🇹🇭 🇻🇳

Estradiol Cypionate 10mg/mL Injectable | 20-Vial Kit

Estradiol Cypionate 10mg/mL Injectable | 20-Vial Kit — Long-acting injectable oestrogen (cypionate ester) — ERα/ERβ agonist studied for HPG axis modulation, bone density, cardiovascular, and comparative steroid pharmacokinetics research. ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.

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

$510

or
SKU: QSC-EC100-ESTRADIOL-CYP-10MG-ML-20VIAL
Categories: China, Oils, Performance & Hormone Optimization
Brand: QSC
Technical Specs & COA

QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SynthesisChina Warehouse

What is Estradiol Cypionate?

Estradiol Cypionate (Long-acting injectable oestrogen research compound) is the cypionate ester of 17β-oestradiol — C₂₆H₃₆O₃, MW 396.6. Esterification provides extended-release oestrogen activity (peak ~3–5 days, active ~2–3 weeks) vs native oestradiol. Activates oestrogen receptors ERα and ERβ — regulates reproductive biology, bone density, cardiovascular function, CNS activity, and metabolic processes. Primary injectable oestrogen reference compound for HRT and oestrogen receptor research.

Research Applications

Oestrogen Receptor Research

ERα and ERβ activation, nuclear signalling, and oestrogen-responsive gene expression

HRT Research Models

Long-acting oestrogen replacement — ovariectomised animal model oestrogen restoration

Bone Density Research

ERα-mediated osteoblast activity and bone mineral density maintenance models

Cardiovascular & Metabolic Research

Oestrogen’s protective cardiovascular effects and lipid profile modulation

CNS Oestrogen Signalling

ERα/β-mediated neuroprotection, neuroplasticity, and mood regulation research

Quick Specs

Form Oil-based injectable solution
Concentration 10mg/mL
CAS 313-06-4
Molecular Formula C₂₆H₃₆O₃
MW 396.6 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
Receptor Target ERα / ERβ oestrogen receptors
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.

Frequently Asked Questions

How is this QSC injectable supplied?
QSC injectable solutions are supplied ready-to-use — no reconstitution required. Each vial contains the stated concentration in pharmaceutical-grade carrier (oil or aqueous). Draw using a sterile syringe appropriate for the solution viscosity.
How should this QSC injectable be stored?
Oil-based solutions: store at room temperature (15–25°C), away from direct sunlight — do not refrigerate as cold temperatures can cause crystallisation. Aqueous solutions: store at 2–8°C. Properly stored, injectable solutions are stable for 2–3 years.
What purity is this QSC injectable and how is it verified?
All QSC injectable compounds are ≥99% pure 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
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