Description

Estandron Prolongatum CAS NO 62963-82-0 is a high-purity pharmaceutical-grade steroid ester, specifically testosterone 17β-undecanoate. This compound is a critical long-acting prodrug, designed to provide a sustained and controlled release of testosterone upon administration. It is an essential active pharmaceutical ingredient (API) for the formulation of advanced hormone replacement therapies (HRT) and other androgen-based treatments. Pharmaceutical manufacturers and research institutions rely on this API for its consistent quality and reliable pharmacokinetic profile in developing injectable depot formulations.

Application

• Long-Acting Hormone Replacement Therapy (HRT): Primary API for injectable depot formulations providing sustained testosterone release over several weeks.
• Androgen Deficiency Treatment: Used in medications for male hypogonadism, offering improved patient compliance through reduced injection frequency.
• Veterinary Pharmaceuticals: Employed in long-acting anabolic preparations for livestock and companion animals.
• Clinical Research: Serves as a reference standard and key intermediate in pharmacological studies and the development of novel androgen delivery systems.
• Controlled-Release Drug Delivery: A model compound for researching and developing advanced parenteral sustained-release technologies.

Basic Information

Product Name	Estandron Prolongatum
CAS No.	62963-82-0
Molecular Formula	C30H48O3
Molecular Weight	456.71 g/mol
Synonyms	Testosterone Undecanoate; Testosterone 17β-Undecanoate; TU; Pantestone; Andriol Testocaps; 17β-Hydroxyandrost-4-en-3-one 17-undecanoate; Undecanoic acid, (17β)-17-(1-oxoundecyl)oxy-androst-4-en-3-one; NSC-17591
EINECS	Contact for details

Quality Control

Our Estandron Prolongatum is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling, to ensure it meets stringent pharmaceutical standards. We provide full traceability and support regulatory submissions. A detailed Certificate of Analysis (COA) is available for every batch, confirming compliance with in-house specifications and relevant pharmacopeial guidelines.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation. The container should be kept tightly sealed when not in use.

Specification

Item	Specification
Appearance	White or almost white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 1.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.