1
Topical application demonstrated potent local anti-androgenic activity without measurable systemic effects in preclinical models.
View on PubMed →
RU-58841 Powder, shipped from our EU warehouse
Tax included where applicable. Shipping calculated at checkout.
RU-58841 is a non-steroidal androgen receptor antagonist investigated for topical applications. In preclinical models, it demonstrated potent local anti-androgenic activity without systemic effects, a critical distinction from oral anti-androgens. Rapid plasma hydrolysis confines its activity to the site of application.
Every batch is independently tested by a 3rd party laboratory. Certificate of Analysis available below.
European Union26 EU countries, no customs
Buying in the European Union
We hold RU-58841 Raw Powder in stock in our EU warehouse and ship tracked to 26 EU countries. No customs checks and no import duties: the parcel never leaves the EU. Pay by card, crypto or bank transfer.
Ordering from the UK, the USA or elsewhere? The same product ships from our UK warehouse: see the UK warehouse page.
EU ShippingNo customs, 7-10 days
3rd Party TestedIndependent lab CoA
≥96% HPLC PurityVerified per batch
Safe DeliveryDiscreet packaging
Research Overview
About this compound
Buying RU-58841 in Europe
This listing ships from our EU warehouse, inside the European Union: no customs declarations, no import duties and no parcels held at the border, which is the usual problem when this compound is ordered from outside Europe. We deliver to 26 EU countries in 7 to 10 working days, with free shipping over €110.
RU-58841 is hard to find from a European stockist at all, and harder still with a published certificate. Each 3 g container carries its batch, and the certificate for that batch is published before it goes on sale. You read the purity figure and open the laboratory record yourself, before you order.
What does the research say?
RU-58841 is a non-steroidal androgen receptor antagonist originally developed for topical applications. In preclinical models, topical RU-58841 demonstrated potent local anti-androgenic activity in skin tissue while producing no measurable systemic anti-androgenic effects, a critical distinction from oral anti-androgens.
Published research showed that topical RU-58841 reversed the miniaturisation process in androgen-sensitive hair follicles in the macaque model, producing results comparable to finasteride but through a different mechanism (receptor antagonism vs 5-alpha reductase inhibition). The compound's lack of systemic effects is attributed to rapid hydrolysis in plasma, confining its activity to the site of application.
These are not marketing claims. These are peer-reviewed, published results. You can verify every reference below.
Why does quality matter with RU-58841?
RU-58841 is supplied as a raw powder for compounding. Purity is critical because degradation products may have different receptor binding profiles. Independent testing confirms both identity and purity of the active compound.
At Camo Chem, every batch is tested by an independent 3rd party laboratory. We publish the full Certificate of Analysis for every batch, and you can verify the results directly with the lab. We do not self-certify. Ever.
Ask your current supplier: who tests their products?
Technical Data
Compound specifications
| Common Names | RU-58841, RU58841, PSK-3841 |
| CAS Number | 154992-24-2 |
| Molecular Formula | C₁₇H₁₈F₃N₃O₃ |
| Molecular Weight | 369.34 g/mol |
| Classification | Non-steroidal androgen receptor antagonist |
| Purity | ≥96% (HPLC verified) |
| Content | 3 g raw powder |
| Physical Form | White crystalline powder |
| Solubility | Soluble in ethanol, DMSO, PG |
| Storage | Cool, dry place. Keep sealed once opened. |
Peer-reviewed Studies
Published research on RU-58841
2
Reversed follicle miniaturisation in the macaque model, with results comparable to finasteride through a different mechanism.
View on PubMed →3
Rapid plasma hydrolysis confined activity to the site of application, explaining the lack of systemic effects.
View on PubMed →
Customer Reviews
What researchers are saying
4.6
5 reviews
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★★★★★
Prodotto legit, spedizione eccellente, purtroppo però ho dovuto interromperne l'uso causa sides
★★★★★
It works, but it's very pricy
FAQ
Frequently asked questions
No. This listing ships from our warehouse inside the European Union, so parcels travel within the single market: no customs declaration, no import duty and no border delay. This is the difference from ordering the same compound from outside Europe.
We deliver to 26 EU countries, normally in 7 to 10 working days, with free shipping over €110.
RU-58841 is a non-steroidal androgen receptor antagonist with CAS number 154992-24-2. It was originally developed for topical research applications. It is sold exclusively as a research compound.
Every batch meets a minimum of 96% purity as verified by HPLC. Testing is performed by an independent 3rd party laboratory.
By an independent laboratory not affiliated with Camo Chem. We do not self-certify.
RU-58841 is supplied as 3g of raw crystalline powder. It is not pre-mixed or in solution.
Store in a cool, dry place. Keep the container tightly sealed once opened. Protect from moisture and light.
