Description

17Beta-Hydroxyestr-4-En-3-One 17-Palmitate is a high-purity steroid ester, specifically the palmitic acid ester of testosterone. This compound is valued for its role as a key pharmaceutical intermediate and reference standard in the development and quality control of steroidal active pharmaceutical ingredients (APIs). It is primarily required by manufacturers and research institutions in the pharmaceutical, biotechnology, and fine chemical sectors for synthesis, analytical method development, and regulatory compliance testing.

Application

• Pharmaceutical Intermediate: A critical building block in the multi-step synthesis of complex steroidal drugs and hormone therapies.
• Reference Standard: Used for analytical method validation, calibration, and quality control (QC) testing in pharmaceutical laboratories to ensure product purity and identity.
• Research & Development: Serves as a precursor or model compound in biochemical and pharmacological research exploring steroid metabolism and activity.
• Active Pharmaceutical Ingredient (API) Manufacturing: Employed in the production of specific testosterone-based or modified steroid APIs.
• Impurity Standard: Used to identify and quantify related substances in steroidal drug substances and finished products.

Basic Information

Product Name	17Beta-Hydroxyestr-4-En-3-One 17-Palmitate
CAS No.	52230-62-3
Molecular Formula	C35H58O3
Molecular Weight	526.84 g/mol
Synonyms	Testosterone Palmitate; Testosterone 17-Palmitate; 17β-Hydroxyandrost-4-en-3-one 17-palmitate; Androst-4-en-17β-ol-3-one 17-palmitate; NSC 113986; Testosterone hexadecanoate; Palmitic acid testosterone ester
EINECS	Contact for details

Quality Control

Our 17Beta-Hydroxyestr-4-En-3-One 17-Palmitate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis. A Certificate of Analysis (COA) detailing all test results and specifications is provided to ensure traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Complies with ICH Q3C guidelines

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