1
Topical application demonstrated potent local anti-androgenic activity without measurable systemic effects in preclinical models.
View on PubMed →
RU58841 Powder
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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.
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Every batch is tested by an independent third-party laboratory with no commercial relationship to Camo Chem. We never self-certify. The full Certificate of Analysis is published on this page and verifiable directly with the testing lab.
Worldwide shipping. UK orders typically delivered in 1-3 working days. EU and international orders 3-7 working days. Tracked and signed-for delivery. Free shipping over £65 (UK) / €110 (EU) / $110 (US).
Store in a cool, dry place. Keep the container tightly sealed once opened. Protect from moisture and light.
Worldwide ShippingUK · EU · USA · Asia
3rd Party TestedIndependent lab CoA
≥98% HPLC PurityVerified per batch
Safe DeliveryDiscreet packaging
Research Overview
About this compound
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 | ≥98% (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
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★★★★★
Its quite difficult for me to tell yet if I am being honest. Im running since a bit over a month now and I hope I will see the first effects soon.
FAQ
Frequently asked questions
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 98% purity as verified by HPLC. Testing is performed by an independent 3rd party laboratory.
By an independent laboratory with no commercial relationship with our company. 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.
