Testosterone Propionate 200mg/mL Injectable | 20-Vial Kit
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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.
* The information on this page is a summary and is not intended to cover all available information about this medication. It does not cover all possible uses, directions, precautions, drug interactions or adverse effects and is not a substitute for the expertise and judgement of your healthcare professional.
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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)
Frequently Asked Questions
Frequently asked questions
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Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it’s about controlling hundreds of articles, product pages for web shops.
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