Description

3-Methoxy-1-Methylestra-1,3,5(10),9(11)-Tetren-17-One is a high-purity steroidal intermediate of significant interest in advanced pharmaceutical synthesis. This compound matters for its role as a key building block in the development of novel therapeutic agents, particularly within the field of endocrinology. Pharmaceutical R&D laboratories and fine chemical manufacturers require this material for the production of specialized steroid-based APIs and for use in metabolic pathway studies.

Application

• Pharmaceutical Intermediate: A critical precursor in the multi-step synthesis of advanced steroidal active pharmaceutical ingredients (APIs).
• Hormone Research: Used as a reference standard or building block in biochemical research focused on estrogen receptor modulation and metabolic studies.
• Fine Chemical Synthesis: Serves as a specialized starting material for custom synthesis and the development of novel chemical entities in contract research organizations (CROs).
• Reference Standard: Employed in analytical laboratories for method development, validation, and quality control testing of related steroid compounds.

Basic Information

Product Name	3-Methoxy-1-Methylestra-1,3,5(10),9(11)-Tetren-17-One
CAS No.	69796-63-0
Molecular Formula	C₂₁H₂₈O₂
Molecular Weight	312.45 g/mol
Synonyms	1-Methyl-3-methoxyestra-1,3,5(10),9(11)-tetraen-17-one; 3-Methoxy-1-methylestra-1,3,5(10),9(11)-tetraen-17-one; 17-Oxo-1-methyl-3-methoxyestra-1,3,5(10),9(11)-tetraene; 1-Methyl-3-methoxy-δ¹,³,⁵(¹⁰),⁹(¹¹)-estratetraen-17-one
EINECS	Contact for details

Quality Control

Our 3-Methoxy-1-Methylestra-1,3,5(10),9(11)-Tetren-17-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by spectroscopic methods, to ensure it meets the high standards required for pharmaceutical R&D and synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, related substances, and physical characteristics 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 (15-25°C). Keep the container tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%

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