S-23 Powder
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S-23 Powder

$19.95

S-23 is a potent investigational selective androgen receptor modulator (SARM) developed by GTX, Inc., notable for its strong affinity to androgen receptors and potential as a male hormonal contraceptive. Supplied as a high-purity white powder (≥98%), S-23 exhibits a favorable anabolic to androgenic ratio and dose-dependent suppression of spermatogenesis with reversible effects after cessation. It is widely used in research to study muscle growth, androgen receptor activity, and reproductive biology. This compound is intended strictly for laboratory research and shipped discreetly to ensure privacy and product integrity.

SKU: LCRP263 Categories: , ,

Buy S-23 Powder – High-Purity Selective Androgen Receptor Modulator (SARM) for Research

Introduction

S-23 is a nonsteroidal SARM with a chemical formula C18H13ClF4N2O3 and a molar mass of 416.76 g/mol. It binds androgen receptors with a Ki of 1.7 nM, demonstrating higher affinity than many earlier SARMs such as andarine. In animal studies, S-23 increases muscle mass and strength while suppressing testicular sperm production, effects that reverse after treatment stops. These properties make it a promising candidate for male contraception research and muscle wasting therapies.

S-23 is orally bioavailable (~96%) with peak plasma levels reached approximately 4 hours post-administration and a half-life of about 12 hours, allowing for once or twice daily dosing in experimental protocols.

Key Features & Benefits

  • High-purity white powder with ≥98% purity confirmed by HPLC and LC-MS.

  • Strong selective androgen receptor binding (Ki = 1.7 nM) with potent anabolic effects.

  • Demonstrates dose-dependent, reversible suppression of spermatogenesis in animal models.

  • Promotes lean muscle growth, strength, and improved body composition.

  • Oral bioavailability of approximately 96% with a half-life of ~12 hours.

  • Useful for research into male hormonal contraception, muscle wasting, and androgen receptor modulation.

  • Soluble in organic solvents such as DMSO, ethanol, and DMF for formulation flexibility.

  • Discreet packaging and worldwide shipping available.

Product Specifications

Specification Details
Chemical Name (2S)-3-(4-chloro-3-fluorophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide
CAS Number 1010396-29-8
Molecular Formula C18H13ClF4N2O3
Molecular Weight 416.76 g/mol
Appearance White crystalline powder
Purity ≥ 98% (HPLC and LC-MS verified)
Solubility ~10-20 mg/ml in DMSO, ethanol, DMF
Storage Conditions Store at -20°C in a dry, dark place

Applications & Usage

S-23 powder is used in research to:

  • Investigate selective androgen receptor modulation for muscle growth and strength.

  • Study reversible male hormonal contraception via spermatogenesis suppression.

  • Explore anabolic to androgenic activity ratios in vivo and in vitro.

  • Analyze pharmacokinetics, metabolism, and receptor binding profiles.

  • Serve as a reference compound in pharmaceutical and analytical chemistry.

Typical research dosing involves oral administration once or twice daily, with doses adjusted based on study design.

Purity & Testing

Each batch undergoes rigorous quality control:

  • High-Performance Liquid Chromatography (HPLC) and Liquid Chromatography-Mass Spectrometry (LC-MS) confirm purity and identity.

  • Testing for contaminants and degradation products.

  • Certificate of Analysis (COA) provided for quality assurance.

Safety & Handling Guidelines

S-23 powder is intended strictly for laboratory research use only and is not for human or veterinary consumption. Handle with appropriate personal protective equipment (PPE) in well-ventilated areas. Avoid inhalation, ingestion, and skin contact. Store securely in a cool, dry place away from heat and light.

Global Shipping & Discreet Delivery

  • Shipped worldwide in plain, unmarked packaging to ensure confidentiality.

  • Vacuum-sealed foil pouches protect against moisture and light degradation.

  • Fast, trackable shipping with customer support.

Why Choose Us?

  • Trusted supplier of pharmaceutical-grade research chemicals.

  • Verified purity with detailed COA documentation.

  • Expert customer support for technical and ordering assistance.

  • Discreet packaging and reliable global shipping.

FAQ

What is S-23 used for in research?
It is used to study muscle growth, androgen receptor modulation, and male hormonal contraception.

What is the purity of S-23 powder?
Our S-23 powder is ≥98% pure, verified by HPLC and LC-MS.

How is S-23 administered in research?
Typically orally, once or twice daily, depending on study protocols.

Is S-23 safe?
It is for research use only; safety in humans is not established.

How discreet is the shipping?
All orders ship in plain, unmarked packaging with vacuum sealing to ensure maximum confidentiality.

Purchase pharmaceutical-grade S-23 powder (≥98% purity) for advanced research on muscle growth, hormonal contraception, and androgen receptor modulation. Discreet worldwide shipping available.

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