Procurement Report: Methenolone Enanthate (CAS 303-42-4)

Product Category: Active Pharmaceutical Ingredient (API) / Research Chemical Primary CAS Number: 303-42-4 Molecular Formula: C₂₀H₃₀O₂ Molecular Weight: 302.5 g/mol

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1. Technical Specifications and Performance Metrics

Methenolone enanthate is a synthetic anabolic-androgenic steroid (AAS) derived from dihydrotestosterone (DHT). For procurement purposes, the material is typically sourced as a high-purity powder or oil-based solution intended for authorized research and development (R&D) or pharmaceutical manufacturing.

• Purity Standards: Industry-grade material typically requires a purity level of >98% to ensure consistent pharmacokinetic profiles. Lower purity grades (<95%) may contain impurities affecting solubility and stability.
• Physical State:
  • Powder: White to off-white crystalline powder.
  • Solution: Typically supplied as an oil-based injectable (e.g., in sesame or cottonseed oil) for depot formulations.
• Solubility: Insoluble in water; highly soluble in organic solvents and lipids (oils).
• Stability: Stable under standard storage conditions (2–8°C or room temperature in sealed, light-protected containers) for 24–36 months when unopened.
• Half-Life: Approximately 7–10 days due to the enanthate ester, allowing for less frequent dosing schedules compared to shorter esters.

Actionable Procurement Recommendation: When requesting samples, explicitly demand a Certificate of Analysis (CoA) verifying purity >98% via HPLC or GC-MS. Verify the molecular weight (302.5 g/mol) matches the batch data. For oil-based formulations, confirm the carrier oil type and viscosity to ensure compatibility with your specific injection equipment or formulation processes.

2. Industry Compliance and Quality Assurance

Methenolone enanthate is a controlled substance in many jurisdictions and is strictly regulated for human therapeutic use. Procurement must adhere to rigorous safety and legal frameworks.

• Regulatory Status: Classified as a Schedule III controlled substance in the United States and similarly controlled under international drug conventions. It is marketed under trade names such as Primobolan Depot for therapeutic applications involving muscle wasting.
• Safety Data: The material is considered hazardous. Safety Data Sheets (SDS) must be provided, detailing risks regarding ingestion, inhalation, and skin/eye contact.
• Quality Certifications: Reputable suppliers should provide GMP (Good Manufacturing Practice) certification for API production. For research use, ISO 9001 compliance is a standard baseline.
• Documentation: Essential documents include the CoA, SDS, and a Declaration of Non-Commercial Use (if applicable for research entities).

Actionable Procurement Recommendation: Do not procure from suppliers unable to provide a current SDS and CoA. Verify the supplier's license to export/import controlled substances in your specific jurisdiction. Ensure the "Intended Use" on the invoice aligns with your legal status (e.g., "For Research Use Only" vs. "Pharmaceutical Manufacturing").

3. Cost Efficiency and Integration Capabilities

As a specialized API, pricing is influenced by purity, batch size, and regulatory compliance costs rather than commodity market fluctuations.

• Price Ranges:
  • Research Grade (1g - 10g): Typically $50 – $150 per gram (inferred B2B range for small research quantities).
  • Pharmaceutical Grade (Bulk 1kg+): Typically $200 – $500 per kg (inferred B2B range for bulk API).
  • Note: Prices vary significantly based on the supplier's location (e.g., India, China, EU) and regulatory overhead.
• Minimum Order Quantity (MOQ):
  • Small Research: 1g – 5g.
  • Bulk Manufacturing: 100g – 1kg.
• Lead Time:
  • Standard Stock: 5–10 business days.
  • Custom Batches: 15–30 business days.
• Integration: The product integrates easily into existing oil-based formulation lines. It requires no special chemical modification for esterification (as the enanthate ester is pre-applied).

Actionable Procurement Recommendation: For cost efficiency, consolidate orders to meet bulk MOQ thresholds (e.g., 100g+) to reduce the per-unit cost by approximately 40-60%. Negotiate lead times by securing a standing order agreement with a single manufacturer (e.g., Samex Overseas or similar API exporters) to mitigate supply chain volatility. Always factor in 10-15% for shipping and customs duties associated with controlled substances.

4. Typical Use Cases

Methenolone enanthate is primarily utilized in scenarios requiring muscle preservation and anabolic support without significant androgenic side effects.

• Therapeutic Muscle Wasting: Historically used to treat conditions characterized by muscle atrophy, such as HIV/AIDS cachexia or post-surgical recovery.
• Hormone Replacement Therapy (HRT) Models: Used in pharmacokinetic studies to model testosterone replacement or androgen deficiency.
• Sports Medicine Research: Investigated for its ability to promote lean muscle mass with a lower risk of hepatotoxicity compared to 17-alpha-alkylated steroids.
• Veterinary Applications: Occasionally used in veterinary medicine for similar muscle-wasting conditions in animals.

Actionable Procurement Recommendation: Align your procurement volume with your specific research phase. For early-stage pharmacokinetic modeling, purchase small, high-purity batches (1g–5g). For formulation development or clinical trial preparation, secure bulk API (1kg+) to ensure batch-to-batch consistency. Ensure your procurement plan explicitly states the "Research Use Only" designation to maintain regulatory compliance.

5. Long-Term Planning Considerations

The market for Methenolone enanthate is driven by niche therapeutic needs and research demand rather than mass-market consumption.

• Market Trends: Demand is stable but sensitive to regulatory tightening. There is a growing trend toward "cleaner" anabolic profiles in research, favoring DHT-derived compounds like Methenolone over more hepatotoxic alternatives.
• Supply Chain Risks: High risk of supply disruption due to export controls on controlled substances. Reliance on a single supplier is risky; diversify across at least two qualified manufacturers (e.g., one in India, one in the EU).
• Regulatory Outlook: Expect increased scrutiny on "gray market" sales. Procurement channels must be transparent and auditable.
• Durability & Storage: Long-term storage requires strict temperature control (2–8°C) and protection from light to prevent ester hydrolysis.

Actionable Procurement Recommendation: Develop a "Just-in-Time" inventory strategy rather than hoarding large stockpiles, which increases the risk of regulatory seizure or degradation. Establish a secondary supplier relationship immediately. Monitor international drug control agency announcements (e.g., UNODC, DEA) for changes in scheduling that could impact import/export licenses.

6. Special Product Recommendations

The following table compares Methenolone Enanthate against common alternatives and forms to assist in selection based on buyer profile and risk tolerance.

Actionable Procurement Recommendation: For most research applications, the Powder form offers the best flexibility for custom formulation. If you lack formulation capabilities, the Oil Solution is recommended but requires strict adherence to storage temperatures to prevent precipitation. Avoid "unbranded" generic sources that do not provide a full CoA, as the risk of impurities is high.

7. Frequently Asked Questions (FAQ)

Q1: Is Methenolone Enanthate legal to purchase for research purposes? A: It is legal to purchase in many jurisdictions for authorized research use only, provided you have the necessary import/export licenses and the supplier is verified. It is illegal to purchase for human consumption or performance enhancement in many countries without a prescription.

Q2: What is the typical shelf life of Methenolone Enanthate powder? A: When stored in a cool, dry, and dark place (2–8°C), the powder typically maintains stability for 24 to 36 months. Oil-based solutions generally have a similar shelf life if unopened and stored correctly.

Q3: Can I use this product for human clinical trials? A: Only if you have obtained the appropriate regulatory approvals (e.g., FDA IND, EMA authorization) and the product is manufactured under GMP standards. Procurement for clinical use requires strict documentation of the batch and purity.

Q4: What is the difference between Methenolone Enanthate and Methenolone Acetate? A: The primary difference is the ester attached to the DHT backbone. Enanthate has a longer ester chain, resulting in a longer half-life (7–10 days) compared to Acetate (2–3 days), allowing for less frequent dosing.

Q5: How do I verify the purity of the product before ordering? A: Request a Certificate of Analysis (CoA) from the manufacturer. The CoA should list the HPLC or GC-MS results confirming purity >98% and the absence of heavy metals or residual solvents.

Q6: What are the primary safety hazards associated with this chemical? A: The material is hazardous if ingested, inhaled, or if it contacts the eyes or skin. It can cause respiratory irritation and is toxic if absorbed. Always handle with appropriate PPE (gloves, goggles, lab coat) in a fume hood.

Q7: What is the Minimum Order Quantity (MOQ) for bulk procurement? A: For research samples, MOQs are often as low as 1 gram. For bulk pharmaceutical-grade API, MOQs typically start at 100 grams to 1 kilogram, depending on the manufacturer.

Q8: Are there any specific storage requirements for the oil-based formulation? A: Yes, oil-based formulations must be kept away from direct sunlight and extreme heat to prevent oxidation of the carrier oil and degradation of the active ingredient. Refrigeration (2–8°C) is recommended for long-term storage.