Buy S4 Powder (Andarine) Online | High-Purity First-Generation SARM Research Chemical

Introduction to Buy S4 Powder (Andarine)

Buy S4 Powder, widely recognized by its research designation Andarine, is a potent, synthetic, non-steroidal Selective Androgen Receptor Modulator (SARM) and one of the earliest and most extensively studied compounds in its class. Originally developed by GTx, Inc. for the investigation of muscle wasting, osteoporosis, and benign prostatic hyperplasia (BPH), S4 remains a cornerstone reference standard in experimental endocrinology.

Unlike later-generation SARMs, Andarine exhibits a unique receptor binding profile. While it demonstrates strong anabolic selectivity in skeletal muscle and bone tissue, it also acts as an antagonist at androgen receptors in the prostate and sebaceous glands. Furthermore, S4 is distinct in its interaction with androgen receptors in ocular tissue, making it a highly valuable compound for researchers studying tissue-specific receptor conformational changes. Supplied as a raw, stable powder, S4 offers exceptional versatility for in-vitro assay preparation and analytical calibration. Note: This product is strictly intended for in-vitro research and analytical purposes only.

Key Features and Benefits – Buy S4 Powder (Andarine)

• Unique Antagonist Profile: S4 provides researchers with a rare model to study a SARM that exerts anabolic effects in muscle/bone while simultaneously acting as an androgen receptor antagonist in prostate tissue.
• Ocular Receptor Research Model: S4’s well-documented interaction with androgen receptors in the eye makes it an indispensable tool for studying the role of AR in visual pathways and tissue-specific side effects.
• First-Generation Benchmark: As an early-stage SARM, Andarine serves as the vital baseline reference standard for comparing the efficacy, selectivity, and pharmacokinetics of newer SARMs.
• Raw Powder Versatility: Supplied as a pure, raw powder, this format allows researchers to create precise, custom-concentration volumetric solutions for in-vitro assays, eliminating the variables of pre-mixed solutions.

Product Specifications

• Chemical Name: S-3-(4-acetylamino-phenoxy)-2-hydroxy-2-methyl-N-(4-nitro-3-trifluoromethyl-phenyl)-propionamide
• Common Designation: S4 / Andarine / GTx-007
• CAS Number: 401900-40-1
• Class: Selective Androgen Receptor Modulator (SARM) / Research Chemical
• Form: Raw Synthetic Powder
• Purity: ≥ 98% (Verified by Independent Third-Party Testing)
• Appearance: White to off-white fine crystalline powder
• Storage Requirements: Store in a cool, dry, dark environment (ideally -20°C for long-term archival). Keep container tightly sealed to prevent moisture absorption and degradation.
• Solubility: Soluble in DMSO, ethanol, and PEG; practically insoluble in water.

Applications and Usage

S4 Powder is exclusively designated for in-vitro (outside a living organism) research and analytical applications. Common laboratory applications include:

• Prostate AR Antagonism Studies: Investigating the mechanism by which S4 blocks androgen receptor signaling in prostate tissue models, relevant to BPH and anti-androgenic research.
• Ocular Receptor Binding Assays: Analyzing the unique conformational changes induced by S4 metabolites at androgen receptors in ocular tissue to study visual pathway disruptions.
• Anabolic vs. Androgenic Profiling: Mapping the structural-activity relationships (SAR) that allow S4 to activate muscle/bone AR while antagonizing prostate AR.
• Forensic and Analytical Standard: Utilizing S4 as a certified reference material (CRM) for LC/MS, GC/MS, and HPLC spectroscopy to validate analytical instruments and detect Andarine metabolites in biological matrices.

Disclaimer: This product is not for human or veterinary consumption. It must only be handled in controlled laboratory environments by qualified professionals.

Purity and Testing

We guarantee a purity level of ≥ 98% for our S4 Powder. Every batch undergoes rigorous, independent third-party testing to verify chemical identity, absolute purity, and the absence of dangerous residual solvents, heavy metals, or unreacted precursors. We ensure our S4 is free from amino-marker impurities commonly found in inferior synthetics. Certificates of Analysis (CoA) and Safety Data Sheets (SDS) are provided upon request, ensuring complete traceability and compliance for your research institution.

Safety and Handling

As a potent investigational SARM with unique tissue-specific properties, S4 Powder must be handled with strict laboratory safety protocols:

• Personal Protective Equipment (PPE): Always wear appropriately sized nitrile gloves, chemical-resistant safety goggles, and an N95 or P100 particulate respirator when weighing or transferring the powder.
• Ventilation: Handling must only occur within a certified chemical fume hood to prevent the inhalation of aerosolized particles.
• Accidental Exposure: In the event of skin contact, wash the area thoroughly with soap and water. For eye contact, flush with copious amounts of water for at least 15 minutes.
• Hygiene: Remove contaminated clothing immediately and wash hands thoroughly after handling, even when PPE is utilized.

Global Shipping and Discreet Delivery

• Global Reach: We ship S4 Powder internationally, in strict compliance with international shipping regulations.
• Discreet Packaging: All orders are dispatched in unmarked, tamper-evident, and odor-proof packaging. The outer packaging does not indicate the nature of the contents.
• Rapid Processing: Orders are processed and shipped within 24 hours of cleared payment. We offer standard and express courier options with full end-to-end tracking.
• Secure Handling: Powders are double-sealed in moisture-barrier bags and placed within sturdy outer containers to prevent damage during transit.

Why Choose Us To Buy S4 Powder?

• Uncompromising Quality: We work directly with top-tier chemical synthesis laboratories and verify every batch in-house and via third-party labs before it reaches you.
• Total Transparency: We provide full analytical data. What is on the label is exactly what is in the bag—no fillers, no impurities, no compromises.
• Expert Customer Support: Our support team understands the nuances of research chemicals and is ready to assist with CoA requests, shipping inquiries, and technical questions.
• Secure Transactions: We utilize SSL encryption and accept secure, discreet payment methods, including major cryptocurrencies (Bitcoin, Monero, Ethereum) and secure bank transfers.

Legal and Safety Compliance

S4 (Andarine) Powder is sold strictly as a research chemical and is not approved by the FDA, EMA, or any equivalent regulatory body for human or veterinary use. It is an investigational compound.

It is the sole responsibility of the purchaser to ensure that the acquisition, possession, and use of S4 comply with all local, state, national, and international laws. Warning: S4 is prohibited by the World Anti-Doping Agency (WADA) and is banned in all competitive sports. Furthermore, SARMs are explicitly regulated as unapproved drugs in many jurisdictions (including the USA, where they are illegal in dietary supplements). We do not ship to regions where this compound is explicitly prohibited for purchase. By purchasing from us, you affirm that you are a qualified researcher or institutional buyer over the age of 18, and you assume all legal liability for the product upon delivery.

Frequently Asked Questions (FAQ)

Q1: What makes S4 (Andarine) different from other SARMs like Ostarine or Ligandrol?
A: S4 features a unique tissue-selectivity profile. While it is anabolic in muscle and bone like other SARMs, it acts as an antagonist at androgen receptors in the prostate, making it valuable for anti-androgenic research. Additionally, S4 is distinct because its metabolites bind strongly to androgen receptors in the eye, a characteristic not shared by Ostarine or Ligandrol, making it vital for ocular-receptor studies.

Q2: Why buy S4 in raw powder form?
A: Raw powder offers maximum flexibility for laboratory researchers. It allows for the creation of highly specific, custom-concentration volumetric dosing tailored to unique in-vitro assay requirements, guarantees no degradation from liquid suspension agents, and allows for long-term stable storage without solvent breakdown over time.

Q3: Can S4 Powder be consumed by humans?
A: Absolutely not. S4 is an investigational research chemical. Because it interacts with ocular androgen receptors, it carries specific risks related to visual disturbances. It also poses risks of testosterone suppression. It is strictly for in-vitro laboratory and analytical research. Human ingestion is strictly prohibited.

Q4: Do you provide a Certificate of Analysis (CoA)?
A: Yes. We provide a comprehensive CoA—including HPLC, GC/MS, and NMR data—for every batch we sell. This guarantees the identity, purity, and safety of the compound for your analytical research.

Q5: Is it legal to buy S4 in my country?
A: Legality varies drastically. While legal for legitimate research in many parts of the world, SARMs are heavily regulated in the USA, Australia, and parts of Europe, particularly regarding human consumption and inclusion in dietary supplements. We cannot provide legal advice. It is your responsibility to research your local laws before placing an order.

Q6: How should I store S4 Powder for long-term research?
A: For maximum longevity, store S4 powder in an airtight, amber glass vial under an inert gas (like Argon) in a freezer set to -20°C. Keep away from direct sunlight, heat, and moisture. When properly stored, the raw powder remains stable for years.