Description

Ethynodiol Diacetate is a synthetic progestin steroid, a key pharmaceutical intermediate in the synthesis of modern hormonal therapies. Its primary commercial value lies in its role as a critical building block for the production of various contraceptive and hormone replacement formulations. This compound is essential for manufacturers in the pharmaceutical and fine chemical sectors requiring high-purity steroid intermediates for API synthesis.

Application

• Pharmaceutical Intermediate: Primary use as a progestogenic building block in the synthesis of active pharmaceutical ingredients (APIs) for oral contraceptives and hormone replacement therapies.
• Contraceptive Formulations: A key precursor in the manufacturing of combination birth control pills and other hormonal contraceptive agents.
• Hormone Research: Used in biochemical and pharmacological research to study progestin activity, receptor binding, and metabolic pathways.
• Steroid Synthesis: Serves as a versatile intermediate for the chemical synthesis of other modified steroid derivatives with targeted biological activity.
• Veterinary Pharmaceuticals: Potential application in the development of hormonal treatments for animal health.

Basic Information

Product Name	Ethynodiol Diacetate
CAS No.	297-76-7
Molecular Formula	C24H32O4
Molecular Weight	384.51 g/mol
Synonyms	Ethynodiol Diacetate; 19-Nor-17α-pregn-4-en-20-yne-3β,17β-diol Diacetate; Lynestrenol Diacetate; 17α-Ethynyl-19-norandrost-4-ene-3β,17β-diol Diacetate; SC-11800; Ethynodiol Diacetate USP; (3β,17β)-17-Ethynyl-19-norandrost-4-ene-3,17-diol Diacetate
EINECS	206-048-7

Quality Control

Our Ethynodiol Diacetate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We offer grades compliant with USP (United States Pharmacopeia) standards for pharmaceutical applications. All products undergo rigorous analytical testing including HPLC, IR, and residual solvent analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept sealed and stored away from direct light and moisture sources to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Specific Rotation	Contact for details

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