Description

Ethynodiol Testosterone Ester is a synthetic steroid ester, a derivative of testosterone combined with ethynodiol. This compound is significant for its role as a key pharmaceutical intermediate in the development of advanced hormonal therapies and active pharmaceutical ingredients (APIs). It is primarily required by manufacturers in the pharmaceutical and biotechnology sectors for research and production purposes.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of complex steroid-based active pharmaceutical ingredients (APIs).
• Hormone Therapy Research: Used in the research and development of novel androgenic and anabolic therapeutic agents.
• Steroid Prodrug Development: Serves as a precursor for creating prodrugs with modified pharmacokinetic profiles for improved delivery.
• Biochemical Research: Employed in laboratory studies to investigate steroid receptor interactions and metabolic pathways.
• Reference Standard: Utilized as a high-purity analytical standard for quality control and regulatory testing in pharmaceutical manufacturing.

Basic Information

Product Name	Ethynodiol Testosterone Ester
CAS No.	61083-04-3
Molecular Formula	C31H44O4
Molecular Weight	480.68 g/mol
Synonyms	Testosterone 17β-(3-cyclopentyl ether) with Ethynodiol; 17β-Hydroxy-4-estren-3-one 17-(3-cyclopentyl-1-propynyl) ether; Ethynodiol 3-cyclopentyl ether testosterone ester; 19-Nor-17α-pregn-4-en-20-yn-3-one, 17-(3-cyclopentyloxy-1-propynyl)-, (17β)-; Ethynodiol Enanthate Testosterone Ester (related); A synthetic steroid ester of testosterone.
EINECS	Contact for details

Quality Control

Our Ethynodiol Testosterone Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets exacting standards for pharmaceutical intermediates. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

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%
Any single unknown impurity	≤ 0.5%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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