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Last Updated: December 12, 2025

Bulk Pharmaceutical API Sources for stanozolol


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Bulk Pharmaceutical API Sources for stanozolol

Vendor Vendor Homepage Vendor Sku API Url
Hangzhou Trylead Chemical Technology ⤷  Get Started Free TL8000176 ⤷  Get Started Free
NovoSeek ⤷  Get Started Free 25249 ⤷  Get Started Free
Hangzhou APIChem Technology ⤷  Get Started Free AC-16140 ⤷  Get Started Free
ISpharm ⤷  Get Started Free I06-2218 ⤷  Get Started Free
ABI Chem ⤷  Get Started Free AC1L18QU ⤷  Get Started Free
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Bulk Active Pharmaceutical Ingredient (API) Sources for: Stanozolol

Last updated: July 29, 2025

Introduction

Stanozolol, a synthetic anabolic steroid derived from dihydrotestosterone (DHT), is primarily used medically for conditions such as hereditary angioedema and occasionally off-label for anemia. It is also renowned in the sports doping community for its anabolic properties. With a growing demand for pharmaceutical-grade stanozolol, identifying reliable bulk API suppliers becomes essential for pharmaceutical manufacturers, compounding pharmacies, and research organizations. This article comprehensively explores bulk API sources for stanozolol, detailing the key players, sourcing considerations, regulatory landscape, and quality assurance protocols.

Pharmaceutical Grade vs. Research Grade API

In sourcing stanozolol, it is imperative to discern between pharmaceutical-grade and research-grade APIs. Pharmaceutical-grade APIs adhere strictly to Good Manufacturing Practice (GMP) standards, ensuring purity, efficacy, and safety, which are mandatory for injectable and oral medications. Research-grade APIs, although chemically identical, may lack the regulatory compliance required for human consumption, often used solely for laboratory research.

Leading Global Suppliers of Stanozolol API

1. Major Pharmaceutical API Manufacturers

Numerous pharmaceutical manufacturing giants globally produce high-purity stanozolol APIs. These manufacturers often operate under strict GMP compliance, certifying that their batches meet international quality standards such as USP (United States Pharmacopeia), EP (European Pharmacopoeia), or WHO GMP.

  • CMIC Group (Japan): Recognized for producing high-quality pharmaceutical ingredients, notably steroidal APIs, with an extensive compliance framework. While specific API offerings are proprietary, CMIC’s portfolio includes anabolic steroids used in pharmaceutical formulations.

  • Haem diet Pharma (India): Known for manufacturing anabolic steroid APIs, including stanozolol, with a focus on GMP standards for export markets. Their products are widely utilized in compounding pharmacies globally.

  • Ghorah Pharmaceutical (India): Offers bulk stanozolol APIs with high purity levels, targeting clients seeking GMP-certified products for pharmaceutical manufacturing.

  • Hangzhou Hua’Hui Biological Technology (China): Supplies a range of steroidal APIs including stanozolol, emphasizing high purity and competitive pricing. Their facilities operate under ISO certifications, with some batches compliant with GMP standards.

  • Mylan (United States/Europe): While primarily a finished drug manufacturer, Mylan’s API division supplies for global pharmaceutical partners, including anabolic steroids, following strict regulatory protocols.

2. Chinese API Suppliers

China remains the epicenter of API manufacturing, offering a broad spectrum of steroidal APIs with varying quality certifications. Suppliers range from large, GMP-certified factories to smaller producers. Key players include:

  • Shanghai Hunter Biotechnology: Provides high-purity stanozolol API, marketed for research and pharmaceutical applications, with GMP certification desirable for pharmaceutical clients.

  • Boli Group: Known for competitive pricing and a substantial catalog of steroidal APIs, including stanozolol. Buyers should verify GMP status and purity levels before procurement.

  • Luxury Biotech: Specializes in steroid API manufacturing, offering products that meet international standards, including HPLC purity tests exceeding 98%.

3. Indian API Manufacturers

India’s API sector is robust, with companies producing pharmaceutical-grade steroids:

  • Indo German Steroid Labs: Offers high-grade stanozolol APIs, explicitly complying with ISO and GMP standards.

  • Shreeji Steroids: Provides bulk stanozolol API, with a focus on export markets and adherence to quality protocols.

  • Gulfab Pharmaceuticals: Supplies both research and pharmaceutical API grades, with labs conforming to ISO 9001:2015 standards.

Sourcing Considerations

Quality Assurance & Certification

When sourcing stanozolol API, stringent quality assurance must be prioritized. Buyers should seek manufacturers with certifications such as:

  • GMP Certification: Ensures manufacturing processes meet regulatory requirements for pharmaceutical products.
  • ISO Certification: Demonstrates adherence to quality management systems.
  • USP/EP Compliance: Verifies API purity and characterization standards.

Testing reports, including High-Performance Liquid Chromatography (HPLC), Gas Chromatography (GC), and Nuclear Magnetic Resonance (NMR) analyses, substantiate API quality.

Pricing and Lead Time

Pricing varies significantly based on purity, quantity, and manufacturer certifications. Bulk orders typically attract discounts, but buyers must consider tariffs, shipping, and customs regulations. Lead times depend on geographic location, manufacturer capacity, and documentation, with GMP suppliers often requiring longer lead times due to quality verification.

Regulatory and Legal Implications

Due to the controlled nature of anabolic steroids, it is essential that buyers understand local regulations regarding import, possession, and use of stanozolol. Many countries classify it as a controlled substance, restricting legal procurement to legitimate medical or research purposes.

Challenges in Sourcing Stanozolol API

  • Legal Restrictions: Navigating legal frameworks is complex; illicit procurement poses legal risks.
  • Quality Variability: Variations in purity and contamination can occur, especially among non-GMP suppliers.
  • Counterfeit Risks: The black market presents counterfeit APIs, emphasizing the necessity of purchasing through reputable channels.
  • Supply Chain Transparency: Ensuring traceability and authenticity demands due diligence.

Emerging Trends in API Sourcing

  • Shift towards GMP-certified suppliers: Increasing regulatory scrutiny is pushing buyers to prefer vendors with comprehensive certification.
  • Technological advances: Improved analytical techniques enable better verification of API purity and composition.
  • Localization of manufacturing: Regional suppliers within jurisdictions with favorable regulatory environments are gaining prominence.

Regulatory Landscape and Compliance

The import, sale, and use of stanozolol APIs are subject to stringent regulations globally. Regulatory agencies such as the FDA (USA), EMA (Europe), and MHRA (UK) enforce controls against unauthorized anabolic steroid distribution. Pharmaceutical manufacturers sourcing APIs must perform due diligence to ensure compliance and avoid legal repercussions.

Conclusion

The landscape of bulk API sources for stanozolol is diverse, dominated by manufacturers across Asia, North America, and Europe. Pharmaceutical-grade APIs, especially those meeting GMP standards, are essential for safe and compliant drug manufacturing. Buyers should prioritize quality assurance, regulatory compliance, and supplier transparency to mitigate risks associated with counterfeit and substandard products. Strategic sourcing from reputable suppliers ensures not only product integrity but also regulatory adherence, thus safeguarding health outcomes and business reputation.


Key Takeaways

  • Prioritize GMP-certified suppliers: Ensures API quality and regulatory compliance.
  • Verify documentation rigorously: Inspections of analytical testing reports are crucial.
  • Understand legal considerations: Comply with local regulations regarding anabolic steroid APIs.
  • Due diligence minimizes risks: Authenticity, purity, and supplier reputation are vital.
  • Global suppliers: Major sourcing hubs include India, China, and established Western manufacturers.

FAQs

1. Is it legal to purchase bulk stanozolol API for research purposes?
Legal status varies by country. Generally, research use may be permitted under specific regulations, but importation and possession often face strict controls. Always consult local laws before procurement.

2. What are the typical purity standards for pharmaceutical-grade stanozolol API?
Pharmaceutical APIs are usually required to meet or exceed 98% purity, verified through analytical testing like HPLC, GC, and NMR spectroscopy.

3. How can I verify the authenticity of an API supplier?
Request GMP certificates, third-party analytical reports, and references from other clients. Confirm certifications through regulatory agency databases when possible.

4. What are key quality indicators of a reliable API manufacturer?
Certifications (GMP, ISO), consistent batch testing, transparent supply chains, and positive industry reputation.

5. Are there risks associated with sourcing from unverified suppliers?
Yes, including contamination, substandard purity, legal penalties, and compromised product efficacy or safety.


Sources:

[1] PharmaceuticalAPI.net. "Top API Manufacturers."
[2] European Medicines Agency. "Guidelines on Good Manufacturing Practice."
[3] US Food and Drug Administration. "Regulatory Requirements for Active Pharmaceutical Ingredients."
[4] Global Industry Analysts. "Steroids API Market Analysis."
[5] China Pharmacopoeia. "Steroidal APIs Standards."

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