Description

Ethinodiol 17-Acetate is a high-purity steroid intermediate of significant importance in the synthesis of active pharmaceutical ingredients (APIs). This compound matters for its role as a key building block in the production of various steroidal hormones and related therapeutic agents. Pharmaceutical manufacturers and advanced research institutions require this material for developing and scaling up critical drug formulations.

Application

• Pharmaceutical Intermediate: A critical precursor in the multi-step synthesis of steroidal hormones and related APIs.
• Hormone Research: Used in biochemical and pharmacological research to study hormone pathways and develop new therapeutic candidates.
• Contraceptive Drug Synthesis: Serves as a key intermediate in the manufacturing process of certain progestin-based contraceptive agents.
• Steroid Derivative Production: Employed in the chemical modification and production of various steroid derivatives for medical use.
• Reference Standard: Can be utilized as a high-purity analytical reference standard in quality control laboratories.
• Process Development: Essential for process chemistry research and scale-up activities in pharmaceutical development.

Basic Information

Item	Details
Product Name	Ethinodiol 17-Acetate
CAS No.	2061-46-3
Molecular Formula	C23H32O3
Molecular Weight	356.50 g/mol
Synonyms	17α-Ethynyl-19-nortestosterone 17-acetate; 17α-Ethynylestr-4-en-17β-ol-3-one 17-acetate; 19-Nor-17α-pregn-4-en-20-yn-3-one, 17β-hydroxy-, 17-acetate; Ethynodiol 17-Acetate; Ethynodiol Diacetate Intermediate; Lynestrenol Acetate Intermediate; 17β-Acetoxy-19-nor-17α-pregn-4-en-20-yn-3-one
EINECS	218-150-9

Quality Control

Our Ethinodiol 17-Acetate 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 the stringent requirements for pharmaceutical intermediates. Certificates of Analysis (COA) documenting all test results are provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated 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%
Single Unknown Impurity	≤ 0.5%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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