Description

Ethy Estradiol-3-Oxyacetate is a high-purity synthetic steroid derivative, specifically an ester of ethinyl estradiol. This compound is valued for its role as a key pharmaceutical intermediate in the synthesis of advanced steroidal APIs. It is essential for manufacturers in the pharmaceutical and life sciences sectors requiring precise and reliable building blocks for hormone-related therapies and research.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of steroidal active pharmaceutical ingredients (APIs), particularly for hormonal medications.
• Research & Development: Used in biochemical and pharmacological research to study estrogen receptor activity and develop novel therapeutic agents.
• Contraceptive Formulations: Serves as a key synthetic intermediate in the production of certain classes of oral contraceptives.
• Hormone Replacement Therapy (HRT): Employed in the development of compounds for treatments addressing menopausal symptoms and hormonal deficiencies.
• Reference Standard: Utilized as an analytical standard in quality control laboratories for method development and impurity profiling.

Basic Information

Product Name	Ethy Estradiol-3-Oxyacetate
CAS No.	41164-35-6
Molecular Formula	C22H28O4
Molecular Weight	356.46 g/mol
Synonyms	Ethinyl Estradiol 3-Oxyacetate; 17α-Ethynyl-1,3,5(10)-estratriene-3,17β-diol 3-(O-Carboxymethyl)oxime; 17α-Ethynylestra-1,3,5(10)-triene-3,17β-diol 3-(Carboxymethoxy)imine; EE-3-CMO; Ethynylestradiol-3-CMO; 3-Carboxymethoxyimino-17α-ethynylestradiol
EINECS	Contact for details

Quality Control

Our Ethy Estradiol-3-Oxyacetate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets exacting standards for pharmaceutical intermediate use. Certificates of Analysis (COA) documenting full specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed in a dry environment and opened under conditions of low humidity to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
Related Substances (HPLC)	Total impurities ≤2.0%
Any single 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.