What is Testosterone Decanoate?
Testosterone Decanoate is the longest-acting testosterone ester (C10 fatty acid) — active duration up to 2–3 weeks. The primary long-acting component of Sustanon blends. Research tool for ultra-long-exposure androgen pharmacokinetics, prolonged HPG suppression studies, and multi-ester formulation research. Research use only.
Research Applications
Ultra-Long Ester PK
Decanoate hydrolysis kinetics, prolonged serum testosterone plateau, depot effects
Sustanon Component Research
Isolated decanoate fraction PK vs complete Sustanon blend studies
Prolonged HPG Suppression
Sustained LH/FSH suppression, recovery timeline after ultra-long ester
Depot Injection Research
IM depot formation, release kinetics, tissue residence time
Comparative Ester Series
Full testosterone ester ladder: propionate→enanthate→cypionate→decanoate
Quick Specs
| Form |
C₂₉H₄₆O₃, MW 446.7 |
| Purity |
≥99% by HPLC — every batch |
| CAS Number |
5721-91-5 |
| Molecular Weight |
MS molecular weight confirmed — every batch |
| Specification |
≥99% by HPLC — every batch |
| Shelf Life |
24 months (unopened) |
| Storage |
Room temperature sealed | cool, dry storage |
| Manufacture |
In-house synthesis — Qingdao, China |
| Brand |
China |
Certificate of Analysis (COA)
Frequently Asked Questions
How do I reconstitute this peptide?
QSC raw powder compounds are supplied as bulk crystalline or amorphous powder in a sealed, labelled container at the stated quantity. No reconstitution is required — the powder is ready for weighing and use in research applications.
How should this peptide be stored?
Store at room temperature (15–25°C) in a cool, dry place away from moisture, heat, and direct light. Keep in the original sealed container. Properly stored raw powder remains stable for 2–3 years.
What purity is this QSC compound and how is it verified?
All QSC raw powder compounds are tested to ≥99% purity 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.
🌍 Domestic shipping: 🇺🇸 USA 5–7 days
🌏 International shipping: 7–14 days
⚠️ RESEARCH USE ONLY — NOT FOR HUMAN CONSUMPTION
QSC products are strictly for in vitro and in vivo laboratory research.
Safety & Handling
🚫
Not for Human Use
These compounds are for research only.
🥽
PPE Required
Always use appropriate protective equipment.
❄️
Storage Compliance
Follow product-specific storage conditions.
Product-Specific Storage
Room temperature sealed | cool, dry storage
