Description

11 α-Methoxyquinestrol is a synthetic steroidal estrogen derivative, identified by CAS NO 94514-09-7. This compound is valued in advanced pharmaceutical research and development for its specific estrogenic activity profile. It serves as a critical intermediate and reference standard for scientists and manufacturers in the pharmaceutical and life sciences sectors, enabling the development and quality control of novel therapeutic agents.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of more complex steroidal drugs and hormone therapies.
• Reference Standard: Used in analytical laboratories for method development, validation, and quality control testing of related pharmaceutical products.
• Biochemical Research: Employed in studies investigating estrogen receptor binding, hormonal pathways, and endocrine system function.
• Active Pharmaceutical Ingredient (API) Development: Serves as a precursor in the R&D of new chemical entities targeting hormonal conditions.
• Veterinary Medicine: Potential application in the development of hormonal treatments for animals.

Basic Information

Product Name	11 α-Methoxyquinestrol
CAS No.	94514-09-7
Molecular Formula	C25H32O3
Molecular Weight	380.52 g/mol
Synonyms	11α-Methoxyquinestrol; 11-Methoxyquinestrol; 3-(Cyclopentyloxy)-19-nor-17α-pregna-1,3,5(10)-trien-20-yn-17-ol, 11-methoxy derivative; Quinestrol 11-α-methoxy derivative; 17α-Ethynyl-11-methoxy-19-nor-17α-pregna-1,3,5(10)-trien-20-yn-3-ol, 3-cyclopentyl ether
EINECS	Contact for details

Quality Control

Our 11 α-Methoxyquinestrol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets high-purity standards suitable for research and development. Certificates of Analysis (COA) documenting all 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 light-sensitive (store away from light) and easily oxidized (store under inert atmosphere); it is recommended to handle under an inert atmosphere such as nitrogen for long-term storage and to minimize exposure to air.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (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.