QSC RESEARCH GRADE
≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SPPS1-Region Domestic Shipping
What is Methylstenbolone?
Methylstenbolone (2,17α-dimethyl-5α-androsta-1-en-17β-ol-3-one) is a potent 17α-methylated anabolic-androgenic steroid with high AR binding affinity and no aromatisation. The 1-en double bond combined with 2-methyl substitution confers exceptional anabolic potency. Research tool for high-potency AR agonism, anabolic:androgenic selectivity studies, and comparative 17α-methyl AAS pharmacology. Research use only.
Research Applications
High-Potency AR Agonism
Comparative AR binding affinity — methylstenbolone vs testosterone, oxandrolone
Non-Aromatising Anabolic Studies
Pure androgen-mediated anabolism without estrogen contribution
17α-Methyl Hepatotoxicity
Oral bioavailability, first-pass metabolism, hepatic enzyme induction research
Anabolic:Androgenic Selectivity
Levator ani:prostate ratio at equivalent doses — tissue selectivity profiling
AAS Structure-Activity Research
2-methyl + 1-en combined effect on receptor binding and transcriptional activity
Quick Specs
| Form | Tablet — 10mg per tablet, 100-tablet bottle |
| CAS Number | 5197-58-0 |
| Molecular Formula | C₂₀H₃₀O₂ |
| Molecular Weight | 302.5 g/mol |
| Compound Type | 17α-Methyl Anabolic-Androgenic Steroid |
| Purity | ≥99% by HPLC — every batch |
| Identity | MS molecular weight confirmed — every batch |
| COA | Janoshik-independent, publicly verifiable |
| Manufacture | In-house synthesis — Qingdao, China |
| Storage | Room temperature sealed | cool, dry storage |
| Shelf Life | 24 months unopened |
