Testosterone Propionate 200mg/mL | 20-Vial Kit

Testosterone Propionate 200mg/mL Injectable | 20-Vial Kit

Testosterone Propionate 200mg/mL Injectable | 20-Vial Kit — Short-acting testosterone ester (propionate, ~2-day half-life) — rapid-onset AR agonist studied for acute HPG axis dynamics, androgen pharmacokinetics, and fast-clearance TRT models. ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.

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

$430

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QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House Synthesis1-Region Domestic Shipping

What is Testosterone Propionate?

Testosterone Propionate (Short-acting esterified testosterone (injectable)) is a testosterone propionate ester — C₂₂H₃₂O₃, MW 344.5. The 200mg/mL high-concentration formulation provides a higher dose per mL injection volume. Rapid-onset ester with peak ~24–36h and active window ~2–3 days. Free testosterone activates the androgen receptor (AR). Aromatases to oestradiol via CYP19A1.

Research Applications

High-Concentration Short-Acting Androgen

200mg/mL format reduces injection volume for equivalent dose research protocols

Androgen Receptor Biology

AR binding, nuclear translocation, androgen-responsive gene expression

Pharmacokinetic Research

Short half-life enables precise peak-and-trough testosterone studies

Aromatisation Research

CYP19A1 conversion to oestradiol — oestrogenic co-effects

HPG Axis Research

Rapid suppression/recovery kinetics of the hypothalamic-pituitary-gonadal axis

Quick Specs

Form	Oil-based injectable solution
Concentration	200mg/mL
CAS	57-85-2
Molecular Formula	C₂₂H₃₂O₃
MW	344.5 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
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 QSC Testosterone supplied?

QSC Testosterone esters are supplied as ready-to-use oil-based injectable solutions — no reconstitution required. Each vial contains the stated concentration in pharmaceutical-grade carrier oil. Warm the vial briefly in your hand before drawing.

How should injectable Testosterone be stored?

Store at room temperature (15–25°C), away from direct sunlight. Oil-based testosterone solutions are stable for 2–3 years properly stored. Do not refrigerate as this can cause crystallisation of the ester in the oil.

What purity is QSC Testosterone and how is it verified?

QSC Testosterone injectable solutions are ≥99% HPLC pure with MS-confirmed identity on every batch. 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.

🌍 Domestic shipping: 🇺🇸 USA · 🌏 International: China warehouse — 7–14 day global delivery