Testosterone undecanoate
CAS No.: 5949-44-0
Synonym: Andriol, Testosterone undecylate
Mol. Formula: C₃₀H₄₈O₃
Mol. Weight: 456.70 g/mol
ATC Code: G03BA03
Therapeutic Category: Anabolic steroid
DMF Available: Yes
COA Available: Yes
FDA Approved: Yes
API Grade: IP/BP/USP
WHO GMP Approved: Yes

1) API Quality
Testosterone Undecanoate API is produced with a strong focus on purity, stability, and pharmacological consistency. Every batch undergoes stringent quality checks, including impurity profiling, assay testing, and physicochemical evaluation. Manufacturing follows GMP-certified procedures, ensuring compliance with major global pharmacopoeias. The API is refined using advanced purification techniques that ensure uniformity, minimal degradation, and high therapeutic efficacy suitable for formulation into long-acting testosterone products.
2) Comprehensive Documentation
Complete regulatory support is available to facilitate global registrations. Documentation includes Drug Master File (DMF), Certificate of Analysis (COA), stability studies, process validation reports, MSDS, and analytical method validations. Each document is meticulously prepared to align with international standards, ensuring seamless approvals for clients across regulated and semi-regulated markets.

3) Secure Supply Chain
The supply chain for Testosterone Undecanoate API is designed to ensure reliability, transparency, and quality preservation. Raw materials are sourced from verified suppliers, and each supply step is monitored for compliance and traceability. Controlled storage conditions, safe handling processes, and strong logistics partnerships maintain API stability during transportation, ensuring timely global delivery.

4) Manufacturer & Supplier Expertise
The API is manufactured by facilities equipped with advanced reactors, controlled environments, and automated quality systems. Expert chemists and process engineers oversee each stage of production, ensuring consistent output and strong scalability for bulk orders. Experience in hormone APIs enables efficient operations and dependable supply.

5) Amber Lifesciences’ Role
Amber Lifesciences supports partners with high-quality Testosterone Undecanoate API backed by GMP manufacturing, reliable supply, global documentation support, and end-to-end technical assistance. Their expertise ensures seamless sourcing for formulation development and commercial production.

Active Pharmaceutical Ingredient (API) – Not for Direct Human or Veterinary Use.