Description

3-Methoxyestra-2,5(10)-Dien-17Beta-Ol CAS NO 1091-93-6 is a high-purity steroidal intermediate of significant importance in advanced pharmaceutical synthesis. This compound serves as a critical building block for the development of novel therapeutic agents, particularly in the fields of endocrinology and oncology. It is primarily required by research institutions and pharmaceutical manufacturers engaged in the synthesis of complex steroid-based APIs and reference standards.

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of advanced steroidal active pharmaceutical ingredients (APIs).
• Research & Development: Used in medicinal chemistry for the discovery and optimization of new drug candidates targeting hormone receptors.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in pharmaceutical laboratories.
• Biochemical Research: Employed in studies investigating steroid metabolism, receptor binding, and signal transduction pathways.
• Process Chemistry: Utilized in scaling up synthetic routes for the commercial production of steroidal compounds.

Basic Information

Item	Details
Product Name	3-Methoxyestra-2,5(10)-Dien-17Beta-Ol
CAS No.	1091-93-6
Molecular Formula	C20H28O2
Molecular Weight	300.44 g/mol
Synonyms	3-Methoxyestra-2,5(10)-dien-17β-ol; 3-Methoxy-19-nor-17α-pregna-2,5(10)-dien-20-yn-17-ol; 17β-Hydroxy-3-methoxyestra-2,5(10)-diene; 3-Methoxy-19-nor-17α-pregna-2,5(10)-dien-20-yn-17β-ol; 3-Methoxyestra-2,5(10)-dien-17-ol; A key steroidal synthon.
EINECS	Contact for details

Quality Control

Our 3-Methoxyestra-2,5(10)-Dien-17Beta-Ol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis. Certificates of Analysis (COA) documenting full specifications are provided to ensure traceability and compliance with your research or cGMP guidelines.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Keep the container tightly sealed in a dry environment to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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