Last reviewed: October 2026 · Cleared Peptides research team
RU58841 is a nonsteroidal compound also listed as PSK-3841 and HMR-3841. CAS 154992-24-2. Formula C17H18F3N3O3. Published descriptions class it as an androgen receptor antagonist. The hydantoin core is the structural feature usually compared with other nonsteroidal androgen receptor ligands.
| Name | RU58841 |
|---|---|
| Other names | RU-58841; PSK-3841; HMR-3841 |
| CAS number | 154992-24-2 |
| PubChem CID | 132981 |
| Molecular formula | C17H18F3N3O3 |
| Molecular weight | 369.34 g/mol |
| Class | Nonsteroidal androgen receptor antagonist |
| Catalog status | Not a current Cleared Peptides lot. |
Receptor class
An androgen receptor antagonist occupies the receptor in binding experiments. That statement is the pharmacology class. It is not an instruction and it is not a claim about skin, hair, or any other tissue outcome.
Related guides on this page: KX-826 and CB-03-01, which are different molecules in the same receptor class.
Frequently Asked Questions
What is the CAS number?
154992-24-2.
Is RU58841 the same as KX-826?
No. KX-826 is pyrilutamide, CAS 1272719-00-2.
Is this for human use?
No. Laboratory reference only.
Selected References
Registry records and peer-reviewed literature listed as scientific background. Citation does not imply endorsement, a benefit, or any use.
- PubChem CID 132981, CAS 154992-24-2. PubChem 132981
Research Use Only Notice
This guide is provided for educational and laboratory reference purposes. It summarizes published structural and biochemical literature. It does not describe, recommend, or imply any use in humans or animals. These materials are not drugs, foods, cosmetics, or dietary supplements on this page, are not offered here as a treatment, and no dosing or administration instructions are provided. Cleared Peptides does not currently list a lot for every compound on this page.
