Description
S-23 Capsules: Premium Industrial Grade Research Chemical for Advanced Applications
PRODUCT SPECIFICATIONS TABLE
| Attribute | Specification |
|---|---|
| Brand | biosynlab |
| Product Name | S-23 Capsules |
| IUPAC Name | (2S)-3-(4-chloro-3-fluorophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide |
| Common Names | S-23, S23 |
| CAS Number | 1010396-29-8 |
| Molecular Formula | C₁₈H₁₃ClF₄N₂O₃ |
| Molecular Weight | 416.76 g/mol |
| Form | Gelatin Capsules |
| Capsule Dosage | 10mg per capsule |
| Pack Size | 30 capsules, 60 capsules, 90 capsules |
| Purity | ≥98.5% (HPLC) |
| Chemical Class | Selective Androgen Receptor Modulator (SARM) |
| Appearance | White powder in clear gelatin capsules |
| Storage | 2-8°C, desiccated, light-protected |
| Packaging | Amber pharmaceutical bottle with desiccant |
| Shelf Life | 24 months when stored properly |
Premium S-23 Capsules – Laboratory Grade SARM
biosynlab delivers pharmaceutical-grade S-23 Capsules for sophisticated scientific research and analytical applications. As a premier supplier of selective androgen receptor modulators (SARMs) to laboratories across the USA, United Kingdom, and European Union, we provide researchers with precisely dosed, high-purity compounds essential for reproducible experimental protocols and cutting-edge pharmaceutical research.
Chemical Composition & Structure
S-23 (systematic name: (2S)-3-(4-chloro-3-fluorophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide) is a non-steroidal selective androgen receptor modulator developed by GTx, Inc. This compound features a unique chemical structure with a chloro-fluoro-phenoxy group and a trifluoromethyl-cyano-phenyl amide moiety. The molecular formula C₁₈H₁₃ClF₄N₂O₃ yields a molecular weight of 416.76 g/mol.
As a high-affinity tissue-selective androgen receptor agonist, S-23 demonstrates exceptional binding affinity for androgen receptors with potent activity in muscle and bone tissue. This profile has made it a compound of significant interest in research examining muscle preservation, bone density, and potential male contraceptive applications.
Capsule Advantages for Research
Our 10mg capsules offer distinct advantages for laboratory workflows:
- Precise Dosing: Each capsule contains exactly 10mg of active compound (±2% variance)
- Convenience: Pre-measured units eliminate weighing errors and contamination risks
- Stability: Encapsulation protects from oxidation, moisture, and light degradation
- Documentation: Batch-coded for complete traceability and chain of custody
- Ease of Use: Simplified administration in research protocols
Research Applications
biosynlab S-23 Capsules serve as standardized reference materials for:
- Androgen receptor pharmacology and selectivity studies
- Comparative research with other SARMs (RAD-140, MK-2866, LGD-4033)
- Muscle atrophy and wasting disease research
- Bone density and osteoporosis studies
- Male contraceptive research (spermatogenesis suppression)
- Metabolic research and body composition studies
- Analytical method development (HPLC, LC-MS/MS)
- Forensic toxicology reference standards
- Sports doping research and detection methods
Researchers utilize S-23 alongside other SARMs including RAD-140 (Testolone), MK-2866 (Ostarine), LGD-4033 (Ligandrol), and YK-11 to advance understanding of tissue-selective androgen receptor modulation.
Quality Control & Analytical Verification
Every production batch undergoes rigorous multi-phase testing:
- HPLC Purity Analysis: ≥98.5% confirmed via reverse-phase chromatography
- NMR Spectroscopy: ¹H-NMR, ¹³C-NMR, and ¹⁹F-NMR structural confirmation
- Mass Spectrometry: ESI-MS molecular weight verification
- Chiral Purity: Enantiomeric excess confirmation (S-configuration)
- Uniformity of Dosage: USP <905> compliance testing
- Dissolution Testing: Characteristic release profile confirmation
- Residual Solvent Analysis: GC-HS detection <100ppm total
- Heavy Metals Screening: ICP-MS for Class 1 and 2 elements
- Microbial Testing: USP <61> / <62> compliance
Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS) included with each order.
Geographic Markets & Logistics
biosynlab provides S-23 Capsules to research institutions globally:
🇺🇸 United States: 3-5 day delivery to California, Texas, Florida, New York, Illinois, Washington, Colorado, Oregon, Arizona, Massachusetts, Pennsylvania, Ohio, Georgia, North Carolina, Michigan, New Jersey, Virginia, Maryland, Indiana, Tennessee, Missouri, Wisconsin
🇬🇧 United Kingdom: 2-4 day express to London, Manchester, Birmingham, Glasgow, Edinburgh, Bristol, Liverpool, Leeds, Sheffield, Cardiff, Belfast, Newcastle, Nottingham, Southampton, Leicester, Coventry
🇪🇺 European Union: 3-6 day delivery to Amsterdam, Rotterdam, Berlin, Munich, Hamburg, Cologne, Frankfurt, Stuttgart, Paris, Lyon, Marseille, Barcelona, Madrid, Rome, Milan, Vienna, Prague, Warsaw, Budapest, Copenhagen, Stockholm, Oslo, Helsinki, Brussels, Dublin, Lisbon
🇨🇭🇳🇴 Other Europe: Switzerland, Norway
All shipments include tracking numbers, discrete plain packaging, and customs-compliant documentation.
Packaging & Presentation
- Primary: Pharmaceutical-grade gelatin capsules (size 00)
- Secondary: Amber glass pharmaceutical bottle with child-resistant cap
- Tertiary: Heat-sealed mylar barrier bag with silica gel desiccant
- Outer: Opaque padded mailer with no product identification
- Labeling: Product code, batch number, storage conditions, QR-linked COA
- Documentation: COA, MSDS, handling guidelines, storage recommendations
FOR LABORATORY RESEARCH ONLY – NOT FOR HUMAN CONSUMPTION
biosynlab strictly sells S-23 Capsules for in vitro scientific research, analytical reference standards, and chemical studies only. This product is NOT intended for human consumption, animal administration, or any in vivo application.
By purchasing, you certify:
- You are 18+ years of age with legal authority to purchase research chemicals
- You are a qualified researcher, academic institution, or certified analytical laboratory
- You understand S-23 is not FDA, EMA, or DEA approved for medical use
- You acknowledge this compound is prohibited in competitive sports by WADA and USADA
- You will utilize appropriate PPE: nitrile gloves, safety goggles, lab coat, fume hood
- You will maintain secure storage (2-8°C, locked container, access restricted to authorized personnel)
- You assume full legal responsibility for regulatory compliance
Safety Information:
- CAS Number: 1010396-29-8
- GHS Classification: Skin irritation (Category 2), Eye irritation (Category 2A), Reproductive toxicity (Category 1B)
- Hazard Statements: H315 (causes skin irritation), H319 (causes serious eye irritation), H360FD (may damage fertility, may damage the unborn child)
- Precautionary Codes: P201, P202, P260, P264, P280, P302+P352, P305+P351+P338, P308+P313, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Emergency Protocol: In case of exposure, remove contaminated clothing immediately. Rinse skin with soap and water for 15 minutes. For eye exposure, flush with sterile saline for 15 minutes. Seek medical attention and provide physicians with CAS number (1010396-29-8) and chemical name (S-23). Do NOT induce vomiting if capsule contents are ingested.
Regulatory Notice: S-23 is not approved for human use by the FDA or any regulatory body. It is explicitly prohibited in competitive sports by WADA, USADA, and all major anti-doping agencies. While not currently a controlled substance in most jurisdictions, some regions may restrict SARMs under analog laws or novel substance legislation. Researchers must verify local laws regarding possession, importation, and use of selective androgen receptor modulators. biosynlab assumes no liability for misuse, regulatory violations, or unauthorized applications.





