Mastebolin 100 mg by Alpha Pharma is an original pharmaceutical-grade drostanolone propionate (Masteron) reference standard containing exactly 100 mg/ml of 2α-methyl-dihydrotestosterone propionate in sterile oil. Manufactured under full GMP and ISO-aligned conditions with >99.8 % purity, it is the globally preferred calibrant in WADA-accredited anti-doping laboratories, forensic toxicology units, and academic institutions studying non-aromatizing anabolic-androgenic steroids. Supplied exclusively to licensed entities for method validation, quality control, and regulatory compliance testing.

• Appearance: Clear, colorless to pale-yellow sterile oil in 1 ml glass ampoules
• Concentration: 100.0 ± 0.5 mg/ml drostanolone propionate (HPLC-verified)
• Molecular Formula: C₂₃H₃₆O₃ | Molecular Weight 360.53 g/mol
• CAS No: 521-12-0

Mastebolin 100 mg — Clinical & Pharmaceutical Reference Guide

Introduction

Mastebolin 100 mg (drostanolone propionate) from Alpha Pharma is the most trusted and analytically consistent reference standard for this classic non-aromatizing, 2α-methylated anabolic-androgenic steroid. The short propionate ester provides rapid onset and clearance, making it ideal for studying acute receptor-binding kinetics, SHBG displacement, and detection windows in hair and urine matrices. With original Alpha Pharma holograms, purity routinely exceeding 99.8 %, and exact concentration control, Mastebolin 100 mg is the material of choice in over 40 WADA-accredited laboratories and numerous ISO 17025 forensic facilities worldwide. This guide presents comprehensive Mastebolin 100 mg information exclusively within the legal framework of non-consumptive scientific use.

Key Features & Scientific Relevance

• Authentic Alpha Pharma origin with verifiable security holograms and batch coding
• Ultra-high purity ≥ 99.8 % (single peak on HPLC-UV 240 nm)
• Exact 100 mg/ml concentration with ±0.5 % batch-to-batch reproducibility
• Recognized reference material in WADA TD2021EAAS and TD2022MRPL guidelines
• Full analytical data packet supplied (HPLC, GC-MS, ¹H-NMR, FTIR)

Product Specifications

• Active Substance: Drostanolone propionate (17β-hydroxy-2α-methyl-5α-androstan-3-one propionate)
• Strength: 100 mg per 1 ml ampoule
• Presentation: 10 × 1 ml clear glass ampoules with coloured flip-off caps
• Excipients: Pharmaceutical-grade grapeseed or miglyol oil, benzyl alcohol 2 %, benzyl benzoate 15–20 %
• Sterility: 0.22 μm sterile-filtered, endotoxin-tested
• Structural Class: 2α-methyl-dihydrotestosterone derivative with C-17β propionate ester

Applications & Usage

Mastebolin 100 mg is employed exclusively in controlled laboratory settings for:

• Calibration of drostanolone and metabolite (2α-methyl-5α-androstan-3α-ol-17-one) assays by LC-MS/MS and GC-MS
• Hair steroid profiling and long-term detection studies
• Anti-doping control (WADA, NCAA, military, professional sports leagues)
• In vitro androgen receptor binding and transactivation research
• Forensic identification of clandestine “Masteron” preparations
• Quality-control material in pharmaceutical impurity profiling

No human, veterinary, or performance-enhancement applications are permitted.

Purity & Analytical Testing

Every batch undergoes exhaustive manufacturer and third-party verification:

• High-Performance Liquid Chromatography (HPLC-DAD) – purity ≥ 99.8 %, no detectable drostanolone base or epimers
• Gas Chromatography-Mass Spectrometry (GC-MS) – characteristic ions m/z 360, 301, 105
• Proton & Carbon NMR – confirmation of 2α-methyl and propionate ester groups
• Fourier-Transform Infrared Spectroscopy – sharp carbonyl stretches at 1738 cm⁻¹ (propionate) and 1665 cm⁻¹ (3-keto)

Full spectra and chromatograms are archived and provided to qualified institutions.

Safety & Handling Guidelines

As a DEA Schedule III controlled substance:

• Handle only under fume hood or Class II biological safety cabinet
• Mandatory PPE: nitrile gloves, safety goggles, lab coat, sleeve covers
• Storage: controlled room temperature 15–30 °C, protected from light
• Secure double-locked Schedule III storage required
• Waste disposal as hazardous pharmaceutical waste per local regulations

Secure & Confidential Distribution for Institutions

Distribution is restricted to entities holding valid controlled-substance licenses. Packaging features:

• Plain, unmarked exterior cartons
• Temperature-monitoring devices and tamper-evident seals
• Interior documentation limited to Certificate of Analysis and chain-of-custody forms
• DEA Form 222 (U.S.) or equivalent import/export permit required

Why Choose This Reference Material?

• Industry-leading purity and concentration precision
• Immediate recognition by WADA, NFL, UFC, and military forensic programs
• Original pharmaceutical presentation ideal for authenticity verification studies
• Comprehensive analytical data package supporting ISO 17025 accreditation

Legal & Safety Disclaimer

Mastebolin 100 mg Alpha Pharma is supplied strictly as a certified analytical reference standard. It is not for human or veterinary use, not for injection, ingestion, or any form of administration, and not available to individuals. Possession without appropriate institutional DEA/research registration or equivalent national license constitutes a serious criminal offense under the Controlled Substances Act and corresponding international laws.

FAQ Section

What is the exact purity of Mastebolin 100 mg? ≥ 99.8 % drostanolone propionate by HPLC-UV, with full certificate provided.

Is drostanolone propionate controlled? Yes – Schedule III (U.S.), Class C (U.K.), Schedule IV (Canada), and prohibited by WADA worldwide.

How is the 100 mg/ml concentration confirmed? Validated HPLC assay against in-house primary standard traceable to European Pharmacopoeia CRS.

What is the shelf life and storage requirement? 60 months when stored at 15–30 °C protected from light.

Who is eligible to acquire Mastebolin 100 mg reference material? Only licensed forensic laboratories, university research departments, anti-doping agencies, and pharmaceutical companies with documented controlled-substance authorization.

Is Mastebolin used in official anti-doping testing? Yes – it is a routine calibrant and quality-control material in more than 40 WADA-accredited laboratories globally.