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 |
C₂₀H₃₀O₂ |
| Purity |
≥99% by HPLC — every batch |
| CAS Number |
5197-58-0 |
| 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 |
Frequently Asked Questions
How do I reconstitute this peptide?
QSC research tablets are supplied as pre-dosed oral tablets at the stated concentration. No reconstitution is required. Each tablet is compressed at uniform dose for consistent dosing 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 sunlight. Keep in the original container. Properly stored tablets remain stable for 2–3 years.
What purity is this QSC compound and how is it verified?
QSC research tablets contain active ingredient at ≥99% HPLC purity before tableting, with MS-confirmed identity on every batch. 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
