Testosterone Enanthate 300mg/mL Injectable | 10-Vial Kit
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Testosterone Enanthate 250mg/mL — long-acting esterified testosterone, 10-vial kit. ≥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 Enanthate?
Testosterone Enanthate (Long-acting esterified testosterone (injectable)) is a testosterone enanthate ester — C₂₆H₄₀O₃, MW 400.6. Esterified testosterone hydrolysed to free testosterone after intramuscular injection (peak ~2–4 days, active ~10–14 days). Free testosterone activates the androgen receptor (AR) producing anabolic effects in muscle, bone, and CNS. Aromatases to oestradiol via CYP19A1 — both AR and ERα/β signalling.
Research Applications
Androgen Receptor Biology
AR binding, nuclear translocation, androgen-responsive gene expression
TRT Research Model
Male hypogonadism, testosterone restoration, androgen deficiency
Muscle Anabolism
Protein synthesis, IGF-1 upregulation, satellite cell activation
Aromatisation Research
CYP19A1 conversion to oestradiol — oestrogenic co-effects
HPG Axis Feedback
Hypothalamic-pituitary-gonadal axis suppression and recovery
Quick Specs
| Form | Oil-based injectable solution |
| Concentration | 250mg/mL |
| CAS | 315-37-7 |
| Molecular Formula | C₂₆H₄₀O₃ |
| MW | 400.6 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)
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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