Test Cypionate 50mg/mL | Low-Dose | 20-Vial

Testosterone Cypionate 50mg/mL Injectable | 20-Vial Kit

Testosterone Cypionate 50mg/mL — low-dose long-acting esterified testosterone, 20-vial kit. ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.

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

$350

QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SynthesisChina Warehouse

What is Testosterone Cypionate 50mg/mL?

Testosterone Cypionate 50mg/mL (Low-dose long-acting esterified testosterone (injectable)) is the cypionate ester of testosterone — C₂₇H₄₀O₃, MW 412.6. The 50mg/mL low-concentration format provides precise, lower-dose testosterone delivery for physiological replacement range research protocols. Peak ~1–3 days, active ~2 weeks. Free testosterone activates the androgen receptor (AR). Aromatases to oestradiol via CYP19A1.

Research Applications

Low-Dose Androgen Research

Physiological testosterone range protocols — dose-response and receptor saturation studies

TRT Research Model

Testosterone restoration at sub-pharmacological concentrations

Androgen Receptor Biology

AR binding and signalling at physiological testosterone levels

Aromatisation Research

CYP19A1 oestradiol conversion at low testosterone concentrations

HPG Axis Feedback

Dose-dependent HPG axis suppression at physiological vs pharmacological levels

Quick Specs

Form	Oil-based injectable solution
Concentration	50mg/mL
CAS	58-20-8
Molecular Formula	C₂₇H₄₀O₃
MW	412.6 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
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.

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