What is Superdrol (Methasterone)?
Superdrol (Methasterone — injectable potent DHT-derived anabolic-androgenic steroid) is methasterone — C₂₁H₃₄O₂, MW 318.5 — formulated as an oil-based injectable at 50mg/mL. 2α,17α-dimethyl DHT derivative with exceptionally high anabolic activity and moderate androgenic activity. Does not aromatise to oestrogen. Originally released as a prohormone (2005); reclassified as a controlled AAS. Injectable format provides direct systemic delivery without first-pass hepatic metabolism.
Research Applications
High-Potency DHT-Derived Anabolic Research
Methasterone’s exceptionally high anabolic/androgenic ratio compared to testosterone and nandrolone
Non-Aromatising AAS Model
Potent anabolism without oestrogen co-effects — pure AR-mediated signalling research
Injectable vs Oral AAS Comparison
Oil-based injectable methasterone vs oral — first-pass metabolism elimination studies
Muscle Protein Synthesis
High-potency anabolic effects — nitrogen retention and protein synthesis kinetics
Prohormone/Designer AAS Pharmacology
Regulatory history and receptor pharmacology of methasterone as a designer steroid
Quick Specs
| Form |
C₂₁H₃₄O₂ |
| Purity |
≥99% by HPLC — every batch |
| CAS Number |
3381-88-2 |
| Molecular Weight |
MS molecular weight confirmed — every batch |
| Specification |
≥99% by HPLC — every batch |
| Shelf Life |
24 months (unopened) |
| Storage |
Room temp sealed | 2–8°C recommended |
| Brand |
China |
Frequently Asked Questions
How do I reconstitute this peptide?
QSC injectable solutions are supplied ready-to-use — no reconstitution required. Each vial contains the stated concentration in pharmaceutical-grade carrier (oil or aqueous). Draw using a sterile syringe appropriate for the solution viscosity.
How should this peptide be stored?
Oil-based solutions: store at room temperature (15–25°C), away from direct sunlight — do not refrigerate as cold temperatures can cause crystallisation. Aqueous solutions: store at 2–8°C. Properly stored, injectable solutions are stable for 2–3 years.
What purity is this QSC compound and how is it verified?
All QSC injectable compounds are ≥99% pure 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 temp sealed | 2–8°C recommended
