Key highlights
Product specifications
| Compound Class | Non-steroidal Selective Androgen Receptor Modulator (SARM) |
|---|---|
| Form | Liquid solution in USP-grade PEG-400 |
| Concentration | 15 mg/mL |
| Volume | 30 mL per bottle |
| CAS Number | 1182367-47-0 |
| Chemical Formula | C20H16ClN5O2 |
| Molar Mass | 393.83 g/mol |
| Half-Life | ~44.7 hours |
| Synonyms | RAD-140, Testolone |
| Verified Purity | Batch-tested to 97.5% (HPLC) |
| Compound Class | Non-steroidal Selective Androgen Receptor Modulator (SARM) |
|---|---|
| Form | Liquid solution in USP-grade PEG-400 |
| Concentration | 10 mg/mL |
| Volume | 30 mL per bottle |
| CAS Number | 1165910-22-4 |
| Chemical Formula | C14H12F6N2O |
| Molar Mass | 338.26 g/mol |
| Half-Life | ~24–36 hours |
| Synonyms | LGD-4033, Ligandrol, VK5211 |
| Verified Purity | Batch-tested to 97.29% (HPLC) |
For laboratory research use only. Not for human or animal consumption.
View certificates of analysisIndependently verified
Each compound in this stack is analyzed by an accredited US third-party laboratory before it ships.
Identity and purity confirmed by MZ Biolabs (Tucson, AZ), a US DEA-licensed analytical facility, via HPLC purity analysis and mass-spectrometry identity confirmation under GLP standards.
Our third-party certificates of analysis are published on our website — no login required.
RAD-140 (Testolone)97.5% pure
LGD-4033 (Ligandrol)97.29% pure
Storage & handling
Store per standard laboratory practice for liquid research chemicals.
- Storage conditions: Store in a cool, dry place away from direct sunlight to maximize shelf life.
- UV-resistant glass bottle with a fixed glass dropper, to limit photodegradation and avoid plasticizer leaching (e.g. BPA).
- USP-grade PEG-400 base — pharmaceutical-grade solvent carrier for both compounds.
- Tamper-proof seals, with formulation designed to limit evaporation and hold less than 5% concentration variance.
Why source this stack from Sports Technology Labs
Quality control in the SARM market is notoriously inconsistent. A peer-reviewed analysis published in JAMA examined 44 products sold online as selective androgen receptor modulators and found that labels frequently did not match contents:
Figures from Van Wagoner et al., JAMA 2017 (ref. 1). Independent third-party verification is essential for reproducible SARM research.
Both compounds verified by MZ Biolabs (Tucson, AZ), an accredited US laboratory, via HPLC and mass spectrometry, with batch-linked COAs.
Suspended in pharmaceutical-grade PEG-400 and bottled in the USA.
To prevent plasticizer leaching and cross-contamination from external measuring tools.
Transparent business, standard payment methods, no misrepresentation.
What is in this stack?
This stack pairs two non-steroidal selective androgen receptor modulators (SARMs) — RAD-140 and LGD-4033 — supplied as separate liquid bottles. Both are described below by identity only.
RAD-140 (Testolone)
A non-steroidal selective androgen receptor modulator (SARM). Like other SARMs, it binds the androgen receptor. It is used as a research chemical to investigate androgen-receptor pharmacology in experimental models.
LGD-4033 (Ligandrol)
A non-steroidal selective androgen receptor modulator (SARM). Like other SARMs, it binds the androgen receptor. It is used as a research chemical to investigate androgen-receptor pharmacology in experimental models.
These compounds are supplied strictly as research chemicals for laboratory research. Sports Technology Labs makes no claims regarding their effects, and nothing in this listing should be interpreted as describing outcomes in humans or animals.
Important regulatory information
SARMs are investigational compounds awaiting FDA approval. They are not drugs, foods, dietary supplements, or cosmetics, and are not approved for human use. Marketing them for human use is unlawful.
RAD-140 is a SARM and is prohibited by the World Anti-Doping Agency at all times under S1 (Anabolic Agents), where SARMs are explicitly named (ref. 4).
LGD-4033 (ligandrol) is a SARM and is prohibited by the World Anti-Doping Agency at all times under S1 (Anabolic Agents); ligandrol is named explicitly (ref. 4).
Sports Technology Labs are chemical suppliers, not medical providers. We do not condone or encourage consumer use of research compounds, and we discourage SARM use for performance enhancement.
Scientific references
- Van Wagoner RM, Eichner A, Bhasin S, Deuster PA, Eichner D. Chemical composition and labeling of substances marketed as selective androgen receptor modulators and sold via the internet. JAMA. 2017;318(20):2004–2010.
- National Center for Biotechnology Information. PubChem Compound Summary for RAD-140 / Testolone (CAS 1182367-47-0): molecular formula and molecular weight. PubChem, National Library of Medicine.
- National Center for Biotechnology Information. PubChem Compound Summary for LGD-4033 / Ligandrol (CAS 1165910-22-4): molecular formula and molecular weight. PubChem, National Library of Medicine.
- WADA Prohibited List (2025), Section S1: Anabolic Agents (Other Anabolic Agents — Selective Androgen Receptor Modulators, including ligandrol). WADA.org.
Research use only. All products on this website are intended exclusively for laboratory research and development. They are not for human or animal consumption. These statements have not been evaluated by the U.S. Food and Drug Administration, and these products are not intended to diagnose, treat, cure, or prevent any disease.
FAQs for RAD–140 and LGD–4033 Stack
LGD–4033, also known as Ligandrol, is a nonsteroidal androgen receptor (AR) modulator (SARM) with the chemical formula C19H22F3N3O.
RAD–140, also known as tiramesine, is a selective androgen receptor modulator (SARM) with the chemical formula C19H24N2O2.
