RH
Exceptional purity for peptide research
We've been sourcing research-grade peptides for several years. Rainbow Peptide's vials consistently pass our HPLC verification — purity exceeds 98% every batch. COA matched our internal testing exactly.
HPLC Verified
>98% Purity
COA Included
SOMA Recovery & Tissue Repair
Andarine (S4)
$44.88
Andarine (S4, GTx-007) is a selective androgen receptor modulator studied in bone density and muscle tissue models. High AR binding affinity with bone/muscle tissue selectivity. ≥98% purity, CoA. For Research Use Only.
In Stock — Overnight and 2–3 day delivery available
Product Information
Andarine (S4) Research Chemical
Andarine (S4, GTx-007) is a selective androgen receptor modulator developed by GTx, Inc. It demonstrates high binding affinity for the androgen receptor and has been studied primarily in osteoporosis and muscle wasting models. Andarine exhibits greater tissue selectivity than testosterone, making it a useful research tool for studying tissue-specific AR signalling.
Research Applications
- Osteoporosis models: Andarine showed significant bone density effects in ovariectomized rat models
- Muscle wasting research
- Tissue-selective AR agonism studies (bone vs prostate vs muscle selectivity profiles)
- Comparative SARM selectivity profiling
Product Specifications
- Purity: ≥98% HPLC
- Identity: Mass spectrometry (MW: 441.36)
- CoA: Third-party laboratory, each batch
- Form: Lyophilized powder, glass vial
For Research Use Only (RUO). Not for human consumption.
Frequently Asked Questions
- What is Andarine (S4)?
- Andarine (S4, GTx-007) is a selective androgen receptor modulator studied in bone density and muscle tissue models. High AR binding affinity with bone/muscle tissue selectivity. ≥98% purity, CoA. For Research Use Only.
- Is Andarine (S4) for sale at Rainbow Peptide?
- Yes. Andarine (S4) is available for purchase with Certificate of Analysis confirming >98% HPLC purity. Every order Overnight and 2–3 day delivery available. For Research Use Only.
- What purity is your Andarine (S4)?
- Rainbow Peptide's Andarine (S4) is >98% pure, HPLC verified by an accredited third-party laboratory. A COA is included with every order.
- Is Andarine (S4) safe for human use?
- No. Andarine (S4) is strictly For Research Use Only (RUO). It is not intended for human consumption and is not intended to diagnose, treat, cure, or prevent any disease.
- How quickly does Andarine (S4) ship?
- Overnight and 2–3 day delivery available. Ships in temperature-controlled packaging.
Third-Party Verified
Every Order Ships with a Certificate of Analysis
We don't just claim purity — we prove it. Every batch of Andarine (S4) is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.
- HPLC purity analysis — minimum threshold >98%
- Mass spectrometry — molecular weight confirmation
- Lot number traceable to your order
- Endotoxin limits verified — safe for cell-based assays
RAINBOW PEPTIDE LABS CERTIFICATE OF ANALYSIS
Product Andarine (S4)
Lot # RP-00190-A
HPLC Purity >98.0% >98.5% PASS
Mass Spec (MW) Confirmed Confirmed PASS
Endotoxin <1 EU/mg <0.5 EU/mg PASS
Visual Inspection White powder White powder PASS
What Researchers Say
Verified purchases from active research labs and scientists
5.00
★★★★★
2 verified reviews MT
Reliable consistency batch to batch
Third order now. Consistent batch-to-batch results matter enormously in long-term research. Certificate of Analysis is detailed with mass spec data. Would not switch sources.
SK
Solid product, shipping was fast
Verified against our reference standards. Purity >98.2% by HPLC. Packaging was appropriate for temperature-sensitive peptides. Will re-order.
