Description

3-Methoxyestra-1,3,5(10),6-Tetraen-17-One 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 utilized by research institutions, pharmaceutical R&D departments, and fine chemical manufacturers engaged in the production of complex steroid-based APIs.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of advanced steroidal drugs and hormone analogs.
• Research & Development: Used in academic and industrial laboratories for investigating new biochemical pathways and drug discovery programs.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in analytical chemistry.
• Fine Chemical Synthesis: Employed in multi-step organic synthesis to construct more complex molecular architectures with specific biological activity.

Basic Information

Product Name	3-Methoxyestra-1,3,5(10),6-Tetraen-17-One
CAS No.	17253-36-0
Molecular Formula	C19H24O2
Molecular Weight	284.39 g/mol
Synonyms	3-Methoxyestra-1,3,5(10),6-tetraene-17-one; 3-Methoxy-1,3,5(10),6-estratetraen-17-one; 17-Oxo-3-methoxyestra-1,3,5(10),6-tetraene; 3-Methoxy-19-nor-1,3,5(10),6-pregnatetraene-17,20-dione (related structure); Estra-1,3,5(10),6-tetraen-17-one, 3-methoxy-; A-Ring aromatic steroid intermediate.
EINECS	Contact for details

Quality Control

Our 3-Methoxyestra-1,3,5(10),6-Tetraen-17-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by spectroscopic methods, to ensure it meets the stringent requirements for pharmaceutical-grade intermediates. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request.

Storage

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

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.