Drostanolone 100mg Sterling Knight is a pharmaceutical-grade 100 mg/mL oil-based solution of Drostanolone Propionate (Masteron Propionate) supplied strictly as an analytical reference standard. This short-acting 2α-methyl-dihydrotestosterone ester is a primary calibrant in WADA-accredited anti-doping laboratories, forensic toxicology units, and clinical-research facilities worldwide. As a Schedule III (USA) / Class C (UK) controlled substance and WADA S1 prohibited agent, possession is restricted to properly licensed institutions only.
- Appearance: Clear, colorless to pale yellow viscous oil
- Concentration: 100 mg/mL Drostanolone Propionate
- Molecular Weight: 360.53 g/mol
- Chemical Formula: C23H36O3
- Carrier: MCT or grapeseed oil with benzyl benzoate / benzyl alcohol
- Structural Classification: 2α-methyl-dihydrotestosterone propionate ester
Drostanolone 100mg Sterling Knight — Clinical & Pharmaceutical Reference Guide
Introduction
Drostanolone Propionate 100 mg/mL from Sterling Knight is a high-purity, rapid-acting anabolic-androgenic steroid widely recognized as a benchmark short-ester reference standard in analytical chemistry. The 2α-methylated DHT backbone combined with the fast-releasing propionate ester provides outstanding chromatographic performance and rapid clearance kinetics, making it essential for laboratories developing and validating high-sensitivity steroid detection methods. Manufactured under pharmaceutical-grade conditions and independently verified to exceed 99.5% purity, Drostanolone 100mg Sterling Knight ensures the reproducibility and regulatory traceability required in controlled research environments.
Key Features & Scientific Relevance
- ≥99.5% purity confirmed by third-party ISO/IEC 17025 laboratories
- Short propionate ester (analytical half-life ≈ 1.5–2 days)
- Excellent stability in oil carrier (>36 months at controlled room temperature)
- Primary reference standard in WADA, IOC, and national anti-doping protocols
- Full compliance with DEA Schedule III, EMA, and international controlled-substance regulations
The clinical profile of Drostanolone 100mg Sterling Knight establishes it as a cornerstone compound for LC-MS/MS and GC-MS steroid screening worldwide.
Product Specifications
- Active Ingredient: Drostanolone Propionate
- Manufacturer: Sterling Knight
- CAS Number: 521-12-0
- Concentration: Exactly 100 mg/mL ± 2%
- Carrier Oil: Pharmaceutical-grade medium-chain triglycerides (MCT) or grapeseed oil
- Excipients: Benzyl benzoate 15–20%, benzyl alcohol 2%
- Packaging: 10 mL amber pharmaceutical vial, nitrogen-blanketed, tamper-evident seal
- Shelf Life: Minimum 36 months when stored protected from light at 15–25 °C
Applications & Usage
Within licensed facilities only, Drostanolone 100mg Sterling Knight is utilized for:
- Calibration and linearity verification of HPLC-UV and LC-MS/MS systems
- Positive control in forensic, workplace, and sports drug-testing panels
- Validation of extraction and derivatization procedures for anabolic agents
- In vitro androgen receptor binding and hepatic metabolism studies
- Quality-control reference for oil-based injectable formulation analysis
All use requires documented controlled-substance protocols and chain-of-custody records.
Purity & Analytical Testing
Every batch undergoes comprehensive third-party verification:
- HPLC-UV: ≥99.5% purity with full impurity profile
- GC-MS: Molecular ion m/z 360 confirmation and diagnostic fragmentation
- 1H-NMR & 13C-NMR: Complete structural verification against certified reference standard
- FTIR: Ester carbonyl stretch at ~1735 cm⁻¹
- Residual solvents & heavy metals: Below ICH Q3C/Q3D limits
Digital Certificates of Analysis and spectral data are provided exclusively to verified institutional recipients.
Safety & Handling Guidelines
As a Schedule III / Class C controlled substance:
- Handle only in certified fume hood or Class II biosafety cabinet
- Mandatory PPE: nitrile gloves, laboratory coat, safety goggles
- Double-locked, access-controlled storage at 15–25 °C
- Protect from direct light; avoid temperatures above 30 °C
- Spill response with oil-compatible absorbents
- Disposal via licensed pharmaceutical hazardous-waste contractor
Secure & Confidential Distribution for Institutions
Distribution is restricted to entities holding current controlled-substance licenses:
- Unmarked, tamper-evident outer packaging
- Temperature-monitored shipping with data logger
- Pre-shipment verification against DEA/EMA license registries
- CoA and analytical data delivered via encrypted institutional portal
- No individual or unlicensed orders accepted under any circumstances
Why Choose This Reference Material?
- Verified ≥99.5% purity backed by comprehensive third-party documentation
- Exact 100 mg/mL concentration optimized for calibration curves
- Trusted by leading anti-doping agencies and forensic laboratories worldwide
- Full batch traceability and regulatory compliance support
Legal & Safety Disclaimer
Drostanolone 100mg Sterling Knight (Drostanolone Propionate 100 mg/mL) is supplied exclusively for analytical, research, forensic, and educational purposes within licensed institutions. It is not for human or veterinary administration, not for private possession, and not available for general distribution or sale. All handling, storage, and disposal must comply with applicable national and international controlled-substance laws. Unauthorized possession is a criminal offense in virtually all jurisdictions.
FAQ Section
What is Drostanolone 100mg Sterling Knight? A pharmaceutical-grade 100 mg/mL solution of drostanolone propionate used solely as an analytical reference standard.
Is Drostanolone 100mg Sterling Knight a controlled substance? Yes — Schedule III (USA), Class C (UK), and prohibited under WADA S1 worldwide.
How is purity verified? Through HPLC-UV, GC-MS, NMR, and FTIR performed by accredited third-party laboratories.
What are the storage requirements? Store at 15–25 °C in a secure, light-protected, access-restricted cabinet.
Who may legally possess this reference material? Only licensed research institutions, forensic laboratories, and anti-doping facilities with valid controlled-substance permits.
Can this product be used for human administration? No. It is strictly prohibited for any medical, therapeutic, or performance-enhancing purpose.


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