Description

Ethylestrone CAS NO 64109-55-3 is a synthetic estrogen derivative, a modified form of the natural hormone estrone. This compound is significant for its role as a key pharmaceutical intermediate in the development of steroidal drugs. It is primarily needed by research institutions and pharmaceutical manufacturers engaged in the synthesis of hormone-based therapies and advanced biochemical studies.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of steroidal estrogen medications and hormone replacement therapies (HRT).
• Biochemical Research: Used as a reference standard or active compound in studies investigating estrogen receptor activity and endocrine pathways.
• Academic & Industrial R&D: Serves as a starting material for the development of novel therapeutic agents and diagnostic tools within life sciences.
• Veterinary Medicine: Potential application in the formulation of hormonal treatments for animals.

Basic Information

Product Name	Ethylestrone
CAS No.	64109-55-3
Molecular Formula	C20H26O2
Molecular Weight	298.42 g/mol
Synonyms	19-Nor-17α-pregna-1,3,5(10)-trien-20-yn-3-ol-17-one; 17-Ethynylestrone; 17α-Ethynylestrone; Ethynylestrone; 17α-Ethynyl-1,3,5(10)-estratrien-3-ol-17-one
EINECS	Contact for details

Quality Control

Our Ethylestrone is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure high purity and consistency, meeting the stringent requirements for pharmaceutical intermediates. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). This 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 structure
Assay (HPLC)	≥98.0%
Related Substances (HPLC)	Total impurities ≤2.0%
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.