Endocrinology, androgen receptor, veterinary hormone modeling, and pharmacokinetic research laboratories consistently select our Testosterone Undecanoate powder as a high-specification, reliable research reagent for studying long-acting testosterone esters, sustained-release androgen therapy models, hypogonadism analogs, and analytical reference applications. Supplied exclusively as Testosterone Undecanoate powder for controlled in vitro, pharmacological, receptor-binding, myotrophic, erythropoiesis, lipid profile, and forensic/standard preparation investigations.
Superior Purity & Third-Party Verification
Our Testosterone Undecanoate powder is synthesized to achieve ≥98% purity (often ≥99%), confirmed through orthogonal analytical methods including HPLC, LC-MS/MS, GC-MS, and NMR spectroscopy. Every batch undergoes independent third-party testing, with full Certificates of Analysis (CoA) provided that verify chemical identity, potency assay, residual solvent levels, moisture content, heavy metal screening, and microbial purity. This rigorous quality assurance ensures batch-to-batch consistency and clean, reproducible results in androgen receptor affinity assays, testosterone release kinetics, myotube differentiation studies, hematocrit modulation models, and reference standard validation.
As the longest-acting commonly used testosterone ester, Testosterone Undecanoate features an undecanoate fatty acid chain that imparts very low solubility and extended release characteristics in oil-based formulations, making it a valuable tool for researching prolonged androgen exposure, steady-state pharmacokinetics, minimal injection frequency models, and veterinary growth promotion or hormone replacement analogs without frequent dosing.
Key Product Specifications
- Full chemical name: Testosterone 17β-undecanoate
- CAS Number: 5949-44-0
- Molecular formula: C₂₉H₄₆O₃
- Molar mass: 442.67 g/mol
- Appearance: White to off-white crystalline powder
- Storage: 2–8°C in airtight, light-resistant container with desiccant; protect from moisture and light for optimal long-term stability
- Solubility: Soluble in chloroform, ethanol, oils; very low aqueous solubility
Packaged in secure, tamper-evident glass vials with desiccant packets to maintain integrity during transit and storage, facilitating accurate milligram-to-gram scale handling and dissolution for research compounding.
Why Researchers Choose Testosterone Undecanoate Powder
Investigators value Testosterone Undecanoate powder for its:
- Extremely prolonged release profile enabling studies of sustained testosterone exposure and steady-state hormone levels
- Utility in modeling long-acting androgen replacement, hypogonadism therapy analogs, veterinary endocrinology, and pharmacokinetic comparisons with shorter esters
- Strong anabolic-androgenic activity with natural testosterone metabolism pathways
- Transparent CoA documentation, excellent batch consistency, and reliable solubility in oil vehicles
“The extended-release characteristics and high purity of this Testosterone Undecanoate powder allowed clean, time-dependent androgen data in our long-acting ester pharmacokinetics and receptor studies – highly reproducible results.” – Veterinary Endocrinology & Hormone Research Group
Strict Research-Use-Only Policy
This compound is sold exclusively for legitimate in vitro research, forensic analysis, reference standard preparation, veterinary endocrinology modeling, and authorized scientific or institutional studies. It is not intended for human or companion animal consumption, not approved for medical, therapeutic, dietary supplement, or performance-enhancing use. All purchasers must be qualified researchers, accredited laboratories, licensed veterinary institutions, or verified entities in full compliance with applicable national and international regulations concerning anabolic steroids, controlled substances, and research chemicals. Credential verification or institutional documentation may be required prior to order fulfillment.
Limited Availability – Secure Your Supply Today
High-specification Testosterone Undecanoate powder remains in strong demand among advanced androgen, long-acting ester, veterinary hormone, and pharmacokinetic research programs, with inventory constrained by rigorous production, purification, and quality assurance processes. Secure your required quantity today to avoid delays in ongoing or upcoming projects.
Buy Testosterone Undecanoate powder now from a trusted Testosterone Undecanoate powder USA supplier for fast, discreet, tracked delivery to your verified research facility. Add to cart today and equip your lab with a premium, thoroughly vetted long-ester androgen reagent. Order Testosterone Undecanoate powder online before current stock is depleted – advance your endocrine and myotrophic research with confidence.

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