What is Finasteride?
Finasteride is a competitive 5α-reductase Type II inhibitor — reduces testosterone-to-DHT conversion by ~70%. Research tool for androgenetic alopecia, BPH, DHT-mediated tissue biology, and T vs DHT pharmacology. Large-scale powder for high-throughput 5α-reductase inhibition research and formulation development. Research use only.
Research Applications
5α-Reductase Inhibition
Type II isoform competitive inhibition — T→DHT conversion block, Ki determination
DHT-Mediated Biology
Prostate stromal-epithelial signalling, hair follicle DHT sensitivity, skin
BPH Research
Prostatic DHT reduction, stromal volume, inflammatory pathway modulation
Androgenetic Alopecia
Scalp DHT reduction, follicle miniaturisation reversal, dermal papilla research
HPG Axis at Low DHT
Finasteride impact on hypothalamic negative feedback, LH/FSH dynamics
Quick Specs
| Form |
C₂₃H₃₆N₂O₂, MW 372.5 |
| 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 raw powder compounds are supplied as bulk crystalline or amorphous powder in a sealed, labelled container at the stated quantity. No reconstitution is required — the powder is ready for weighing and use 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 light. Keep in the original sealed container. Properly stored raw powder remains stable for 2–3 years.
What purity is this QSC compound and how is it verified?
All QSC raw powder compounds are tested to ≥99% purity 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 temperature sealed | cool, dry storage
