QSC RESEARCH GRADE
≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SynthesisChina Warehouse
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 | Oil-based injectable solution |
| Concentration | 50mg/mL |
| CAS | 3381-88-2 |
| Molecular Formula | C₂₁H₃₄O₂ |
| MW | 318.5 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 |
| Aromatisation | None — does not convert to oestrogen |
| Storage | Room temp sealed | 2–8°C recommended |
| Shelf Life | 24 months (unopened) |
