- Checked by HPLC, per-lot COA on request
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S-23
Non-steroidal SARM supplied as capsules or a 20 mg/mL liquid
In stock2 formats availableCAS 1010396-29-8
€55Range €55 – €68
This listing is currently unavailable. Contact us and we will tell you when it is back or suggest an equivalent.
Ask about this listing or request its COA- FormPowder-filled hard capsules, or clear solution in a 30 mL dropper bottle
- Mol. weight416.76 g/mol
- Research areasAndrogen receptor pharmacology, tissue selectivity, muscle and bone models, male contraception research
For laboratory research use only. Sold exclusively for in-vitro laboratory research by qualified professionals. Not for human or veterinary use, and not a medicine, food, cosmetic or dietary supplement. Terms and Conditions
Overview
Key facts
Chemically, S-23 belongs to the aryl propionamides — the same family that yielded andarine (S-4) and, before that, the first SARM leads derived from bicalutamide-like structures.
- CAS number
- 1010396-29-8
- Molecular formula
- C18H13ClF4N2O3
- Molecular weight
- 416.76 g/mol
- Purity
- HPLC tested with lot-matched COA available
- Form
- Powder-filled hard capsules, or clear solution in a 30 mL dropper bottle
- Available sizes
- 10 mg · 60 capsules · 30 mL liquid · 20 mg/mL
For research use only. Not for human consumption.
Chemically, S-23 belongs to the aryl propionamides — the same family that yielded andarine (S-4) and, before that, the first SARM leads derived from bicalutamide-like structures. It is a non-steroidal selective androgen receptor modulator: a small synthetic compound, not a steroid, that engages the androgen receptor without the four fused rings characteristic of testosterone and its relatives.
What originally motivated its study was tissue selectivity — the question, central to muscle-wasting research, of whether androgen-receptor activation in muscle and bone can be decoupled from activation in the prostate and elsewhere. Within its series S-23 stands out for comparatively strong receptor binding, and rodent experiments also explored it as a possible male hormonal contraceptive, reporting that suppressed sperm production recovered once dosing stopped.
Specifications
Identity
- CAS number
- 1010396-29-8
- Molecular formula
- C18H13ClF4N2O3
- Molecular weight
- 416.76 g/mol
Supply & purity
- Form
- Powder-filled hard capsules, or clear solution in a 30 mL dropper bottle
- Purity
- HPLC tested with lot-matched COA available
- Available sizes
- 10 mg × 60 capsules; 30 mL liquid at 20 mg/mL (600 mg total)
- Solubility
- Poorly water-soluble; DMSO, ethanol and PEG-based vehicles used for stock solutions
Additional detail
- Compound class
- Non-steroidal SARM; aryl propionamide series
- Molecular target
- Androgen receptor (AR), a nuclear hormone receptor
- Related compounds
- Andarine (S-4) and other aryl propionamide SARMs
- Research areas
- Androgen receptor pharmacology, tissue selectivity, muscle and bone models, male contraception research
- Regulatory status
- Not approved as a drug; not a dietary supplement; on the WADA Prohibited List
- Storage (capsules)
- Cool, dry conditions in the sealed bottle, away from light and humidity
- Storage (solution)
- 2–8 °C, protected from light, tightly capped
Questions about S-23
Does S-23 contain any amino acids?
None. It is a 416.76 g/mol non-steroidal organic molecule bearing chlorine and fluorine atoms. We keep it in the research-compounds department because it is a research chemical, not a peptide — and its target is a nuclear receptor, not one on the cell surface.
Where does it stand among the other SARMs you list?
Andarine shares its aryl propionamide origins, whereas LGD-4033 and RAD-140 come from other chemical classes. Binding strength and tissue-selectivity patterns vary across them — which is precisely why labs test them together in one assay.
Will I get analytical documentation?
Yes: identity and purity are determined by HPLC for each lot, and the certificate is available on request. Given how frequently published surveys find SARM-labelled products mislabelled, comparing the lot number with the certificate before you begin is a minute well spent.
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