Drosta E 200 by Core Labs is a high-purity, long-acting injectable formulation of drostanolone enanthate (Masteron Enanthate) widely encountered in European and international forensic seizures and WADA casework. This analytical reference standard exactly replicates the original Core Labs composition and is supplied exclusively to licensed institutions for LC-MS/MS method validation, long-acting DHT-derivative profiling, stability studies, and forensic comparison. Purity ≥99.5% independently confirmed by third-party ISO/IEC 17025 laboratories using HPLC, GC-MS, NMR, and FTIR.

• Appearance: Clear, colorless to pale-yellow viscous oily solution
• Concentration: 200 mg/mL drostanolone enanthate
• Molecular Formula: C27H44O3
• Molecular Weight: 416.64 g/mol

Drosta E 200 Core Labs — Clinical & Pharmaceutical Reference Guide

Introduction

Drosta E 200 (Drostanolone Enanthate 200 mg/mL) from Core Labs is one of the most consistently documented long-acting dihydrotestosterone (DHT)-derived anabolic-androgenic steroids in modern European underground laboratory markets. The enanthate ester extends the release profile significantly compared to drostanolone propionate, resulting in a prolonged detection window (often 3–6 months) and distinctive metabolite patterns. Authenticated reference material is essential for WADA-accredited laboratories, law-enforcement forensics, and academic researchers studying extended-release 2α-methyl-DHT derivatives and their impact on anti-doping screening.

Key Features & Scientific Relevance

• Purity ≥99.5% independently verified by ISO/IEC 17025-accredited third-party laboratories
• Exact replication of original Core Labs Drosta E 200 formulation
• Primary long-acting drostanolone reference in current WADA and European forensic screening
• Complete analytical data package (CoA, 1H/13C-NMR, LC-MS/MS, GC-MS, HPLC chromatograms) included
• Supplied exclusively to institutions holding valid controlled-substance registration

This clinical profile of Drosta E 200 Core Labs is the definitive resource for regulated drostanolone enanthate analytics.

Product Specifications

• Active Compound: Drostanolone Enanthate (2α-methyl-5α-androstan-17β-ol-3-one 17-enanthate)
• Brand: Drosta E 200 (Core Labs)
• Strength: 200 mg/mL
• Typical Vehicle: Miglyol 840 or grapeseed oil, benzyl benzoate, benzyl alcohol
• CAS Number: 13425-31-5
• Molecular Formula: C27H44O3
• Molecular Weight: 416.64 g/mol
• Structural Classification: Long-acting esterified 2α-methyl-dihydrotestosterone derivative
• Appearance: Clear to pale-yellow viscous solution

These parameters are identical to the original Core Labs manufacturing specification.

Applications & Usage

Licensed laboratories utilize this reference standard for:

• Validation of ultra-sensitive LC-MS/MS methods targeting drostanolone and its long-lived metabolites
• Direct forensic comparison of seized Core Labs Drosta E 200 preparations
• Long-term stability and ester hydrolysis studies of enanthate-esterified DHT derivatives
• Pharmacokinetic modeling of extended-release Masteron formulations
• Quality-control calibration in accredited contract analytical organizations

All use must occur under approved controlled-substance protocols.

Purity & Analytical Testing

Every batch undergoes comprehensive third-party characterization including:

• High-Performance Liquid Chromatography (HPLC) with PDA/UV detection
• Gas Chromatography-Mass Spectrometry (GC-MS)
• Nuclear Magnetic Resonance (1H-NMR and 13C-NMR)
• Fourier-Transform Infrared Spectroscopy (FTIR)
• Residual solvent and heavy-metal screening per ICH guidelines

Certificate of Analysis confirms ≥99.5% purity and absence of free drostanolone or enanthic acid.

Safety & Handling Guidelines

Drostanolone Enanthate is a Schedule III (US) / Class C (EU) controlled substance. Handle only under fume hood wearing nitrile gloves, safety goggles, and laboratory coat. Store upright at 15–30 °C, protected from light, in a locked, access-restricted cabinet. Disposal must follow hazardous-waste and controlled-substance destruction regulations.

Secure & Confidential Distribution for Institutions

Material is released solely to verified license holders in plain, unmarked, tamper-evident packaging compliant with IATA dangerous-goods requirements. No external labeling reveals contents. Analytical documentation is delivered via secure encrypted portal with mandatory chain-of-custody records.

Why Choose This Reference Material?

• Exact match to Core Labs Drosta E 200 composition and presentation
• Full analytical data package supplied with every lot
• Trusted by leading European and international anti-doping and forensic laboratories
• Meets or exceeds ISO/IEC 17025 and GMP reference-standard specifications

Legal & Safety Disclaimer

Drosta E 200 Core Labs reference standard is intended exclusively for analytical, forensic, research, and educational purposes within licensed facilities. It is not for human or veterinary use, not for resale as a medicinal product, and not available to individuals. Possession requires valid controlled-substance authorization. All local, national, and international regulations must be strictly observed.

FAQ Section

What is Drosta E 200 Core Labs?

Drosta E 200 is a premium European-brand 200 mg/mL injectable formulation of Drostanolone Enanthate (long-acting Masteron) manufactured by Core Labs, supplied only as an analytical reference standard.

Is drostanolone enanthate regulated?

Yes, it is classified as Schedule III in the United States, Class C in the EU, and strictly regulated worldwide.

How is pharmaceutical-grade purity verified?

Purity is independently confirmed using HPLC, GC-MS, NMR, and FTIR by accredited laboratories; results are documented in the Certificate of Analysis.

How should Drosta E 200 reference material be stored?

Store at 15–30 °C, protected from light, in a secure, access-restricted location compliant with controlled-substance regulations.

Who is authorized to acquire this analytical standard?

Only licensed analytical laboratories, forensic units, academic institutions, and pharmaceutical organizations holding appropriate controlled-substance registration may possess this material.