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Methenolone Enanthate

    • Product Name Methenolone Enanthate
    • Alias Primobolan
    • Einecs 225-553-3
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    486335

    Chemical Name Methenolone Enanthate
    Common Names Primobolan Depot, Primo
    Drug Class Anabolic-androgenic steroid
    Molecular Formula C27H42O3
    Administration Route Intramuscular injection
    Half Life 5 to 7 days
    Primary Use Muscle growth and performance enhancement
    Legal Status Controlled substance in many countries
    Origin Derived from dihydrotestosterone (DHT)
    Manufacturer Forms Oil-based injectable solution
    Anabolic Rating 88
    Androgenic Rating 44-57

    As an accredited Methenolone Enanthate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White cardboard box with blue and black text, labeled “Methenolone Enanthate 100mg/mL, 10mL vial,” tamper-evident seal, batch and expiry printed.
    Shipping Methenolone Enanthate is shipped in securely sealed, tamper-evident packaging to prevent contamination. It is stored in cool, dry conditions and transported following applicable regulations for pharmaceutical compounds. All shipments include necessary documentation and safety data sheets, ensuring compliance with local and international chemical transport guidelines.
    Storage Methenolone Enanthate should be stored in a tightly sealed container, protected from light and moisture. Keep it at room temperature, ideally between 20°C to 25°C (68°F to 77°F). Store away from heat, direct sunlight, and incompatible substances. Ensure it is kept out of reach of children and unauthorized persons. Proper storage preserves its stability and effectiveness.
    Application of Methenolone Enanthate

    Applications of Methenolone Enanthate in Industrial Manufacturing

    Methenolone Enanthate, as a specialized chemical compound, plays a significant role in high-value life science synthesis workflows and dedicated pharmaceutical ingredient production. Our manufacturing quality enables industrial partners to achieve consistent outcomes in regulated settings throughout each downstream application.

    1. Active Pharmaceutical Ingredient (API) Formulation in Injectable Solutions

    Injectable pharmaceutical manufacturers use Methenolone Enanthate as an active component in the preparation of controlled-release intramuscular depot drugs. Production lines require stability through all critical steps from raw material input, solution blending, sterile filtration, and ampoule/vial filling under strict GMP compliance. The compound’s defined absorption kinetics demand specific controls both in solvent systems and excipient balance. End-stage products must meet stringent impurity specifications prior to packaging and distribution.

    Industry compliance standards

    • Current Good Manufacturing Practices (cGMP, 21 CFR 210/211, EU GMP Volume 4)
    • USP-NF Monograph standards where applicable
    • International Conference on Harmonisation (ICH) Q3A/B for residual solvents and impurities
    • EU Guidelines on Good Distribution Practice (GDP)

    Typical usage ratio

    • 50–150 mg per mL, tailored by product strength and regulatory-approved dosage
    • Excipient proportion (e.g., benzyl benzoate, benzyl alcohol) adjusted 10–35% based on target viscosity and solubility requirements

    Downstream process integration

    • Introduction during the initial API dissolution stage under nitrogen to prevent oxidation
    • Filtration sequence followed by precision volumetric filling of sterile vials or ampoules
    • Terminal sterilization or aseptic packaging steps enforced
    • Comprehensive batch record and reconciliation required before release

    Final product types

    • Human hormonal injectable medications (prescription-based)
    • Veterinary muscular depot solutions (species- and country-specific, where approved)
    • Clinical trial sample batches for new drug application (NDA) submissions
    • Hospital-licensed compounded formulations (where within national law)

    2. Reference Standard Production for Analytical Laboratories

    Analytical standards manufacturers prepare precisely quantified Methenolone Enanthate reference solutions for use by pharmaceutical control labs and regulatory bodies. These standards ensure calibration accuracy for HPLC, LC-MS, and stability-indicating assays. Raw material purity and analytical homogeneity remain critical; production batches require exhaustive traceability and documentation for each unit. Stability validation under ICH conditions safeguards long-term usability for client laboratories.

    Industry compliance standards

    • ISO/IEC 17025 for laboratory quality management
    • USP Reference Standards Program requirements
    • ICH Q6A, Q1A(R2) for stability and analytical consistency
    • ISO 17034 for reference material producers

    Typical usage ratio

    • 1–10 mg/mL in methanol, acetonitrile, or DMSO as neat standards
    • Gravimetric dilution factors documented for each batch release

    Downstream process integration

    • Direct weighing and dissolution in analytical-grade solvents under controlled atmosphere
    • Subsequent packaging in amber ampoules to prevent photodegradation
    • Certified value assignment performed through validated chromatographic methods
    • Distribution accompanied by Certificate of Analysis and full traceability documentation

    Final product types

    • Primary reference standards for pharmaceutical QC labs
    • Certified calibrator solutions for forensic toxicology
    • Analytical controls for stability and shelf-life studies
    • Standardized test kits for regulatory and compliance testing

    3. Preclinical Research Reagent Manufacturing

    Biotech and contract research organizations utilize Methenolone Enanthate as a defined reagent for animal model pharmacology and metabolic pathway studies. Accurate formulation and batch homogeneity are essential, as minute dosing variations can impact the integrity of investigative results. Manufacturers must maintain documentation aligning with GLP (Good Laboratory Practice) systems, and packaging must support reproducible bench handling in dose-response studies.

    Industry compliance standards

    • OECD Principles of Good Laboratory Practice (GLP)
    • AAALAC and relevant IACUC documentation where animal studies are involved
    • REACH Annex requirements for laboratory-use chemicals (for European customers)

    Typical usage ratio

    • Stock solutions produced at 10–200 mg/mL
    • Final dose ranges in animal studies: typically 0.5–10 mg/kg, adjusted per protocol

    Downstream process integration

    • Preparation of aliquots for single-use dosing in preclinical, non-human studies
    • Dilution into specified vehicle carriers (PEG 400, sesame oil, or saline depending on research aim)
    • Packaging under inert gas to maintain stability across shipment

    Final product types

    • Preclinical toxicology and pharmacokinetic research kits
    • Custom-labeled research reagents for CROs and university laboratories
    • Exploratory metabolic fate samples for industrial discovery teams
    • Biological pathway activators in translational science programs

    4. Quality Control Marker in Hormonal Drug Manufacturing

    Methenolone Enanthate functions as a marker compound and quality control spike during the manufacture of complex hormonal formulations. QC labs add traceable amounts to bulk mixtures for yield verification, impurity profiling, and in-process validation. The raw material’s known stability and physical characteristics support accurate process monitoring. Our supply chain supports batch-level documentation to satisfy audits and align with QA oversight in regulated markets.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for API
    • FDA Guidance for Industry: Process Validation
    • Ph. Eur. and USP impurity profile standards
    • IDF, ISO 9001 for cross-industry quality management where required

    Typical usage ratio

    • Batches spiked at 0.01%–0.5% by weight depending on process volume
    • Trace addition protocols established according to analytical method detection limits and lot size

    Downstream process integration

    • Addition during formulation or blending phase of bulk medication production
    • Sample withdrawal at multiple process stages for HPLC or LC-MS verification
    • Batch records include time-stamped trace marker logs for QA release

    Final product types

    • Lot release sample vials for regulatory inspection
    • Internal positive control reference sets for pharmaceutical synthesis
    • Released finished dosage forms (injected or oral hormonal medicines—where permitted)
    • Validation lots for process improvement or scale-up trials

    5. Clinical Trial Material Supply and Blinding Preparation

    Pharmaceutical firms and authorized clinical supply units rely on Methenolone Enanthate in the preparation of investigational medicinal products (IMPs) for phase-specific clinical trials. Material handling and documentation must support strict chain of custody, double-blinding packaging, and rapid batch reconciliation. End-to-end integration from synthesis to clinical depot distribution is required under a strictly controlled GCP environment.

    Industry compliance standards

    • Good Clinical Practice (GCP, ICH E6 R2)
    • 21 CFR Part 312 (Investigational New Drug applications)
    • EU Directive 2001/20/EC (Clinical Trials Directive)
    • Annex 13: Manufacture of Investigational Medicinal Products (GMP for Trials)

    Typical usage ratio

    • Dosage strengths matched to clinical protocol, commonly 50–100 mg/vial or prefilled syringe
    • Packaging: double-blind labeling with coded identifiers per subject randomization protocol

    Downstream process integration

    • Bulk material fractioned under GMP into clinical packaging suites
    • Integration of cold chain or ambient logistics as required per stability study
    • Documentation support for audit trail, batch accountability, and recall traceability
    • Blinded kit assembly and labeling performed under GCP supervision

    Final product types

    • Double-blind clinical trial kits for investigation and control arms
    • Open-label IMP supplies for dose-ranging studies
    • Randomized, coded vials for multicenter trial provision
    • Comparator analytes for clinical research organizations
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