Description

(9β,13α)-3-Methoxy-1,3,5(10)-Estratrien-17-One is a high-purity steroid derivative, specifically a methoxy-substituted estratrienone, serving as a critical intermediate in advanced pharmaceutical synthesis. Its precise molecular structure makes it an essential building block for the research and development of steroidal active pharmaceutical ingredients (APIs) and other fine chemicals. This compound is primarily utilized by R&D laboratories and manufacturers in the pharmaceutical, biotechnology, and life sciences sectors.

Application

• Pharmaceutical Intermediate: A key synthetic precursor in the production of steroidal hormones and related therapeutic agents.
• Research & Development: Used in academic and industrial laboratories for pharmacological studies and the development of new chemical entities.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in pharmaceutical analysis.
• Fine Chemical Synthesis: Employed in multi-step organic synthesis to create complex, value-added molecules for various applications.

Basic Information

Item	Details
Product Name	(9β,13α)-3-Methoxy-1,3,5(10)-Estratrien-17-One
CAS No.	58072-52-9
Molecular Formula	C19H24O2
Molecular Weight	284.39 g/mol
Synonyms	3-Methoxyestra-1,3,5(10)-trien-17-one; 3-Methoxy-1,3,5(10)-estratrien-17-one; 3-Methoxyestra-1,3,5(10),16-tetraen-17-ol (related); 17-Keto-3-methoxyestra-1,3,5(10)-triene; 3-Methoxyestra-1,3,5(10)-trien-17-one (9β,13α)-; Estra-1,3,5(10)-trien-17-one, 3-methoxy-, (9β,13α)-
EINECS	Contact for details

Quality Control

Our (9β,13α)-3-Methoxy-1,3,5(10)-Estratrien-17-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the stringent requirements for pharmaceutical intermediates and research chemicals. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials.

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.