What is Finasteride?
Finasteride is a competitive 5α-reductase Type II inhibitor — blocks testosterone conversion to dihydrotestosterone (DHT). Reduces serum DHT by ~70%. Research: androgen metabolism, DHT-mediated BPH, androgenetic alopecia, DHT vs testosterone tissue-specific activity, 5α-reductase enzyme biology. CAS 98319-26-7.
Research Applications
5α-Reductase Inhibition
T→DHT conversion block — DHT-mediated androgenic pathway research
BPH/Prostate Models
DHT reduction in prostate — stromal and epithelial androgen research
Androgenetic Alopecia
Hair follicle DHT sensitivity — dermal papilla AR research
T vs DHT Comparison
Relative potency and tissue-specificity of T vs DHT dissection
HPG Axis Impact
5α-reductase inhibition — DHT contribution to HPG negative feedback
Quick Specs
| Form |
C₂₃H₃₆N₂O₂ |
| Purity |
≥99% by HPLC — every batch |
| CAS Number |
98319-26-7 |
| 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
