Description

Quingestrone CAS NO 67-95-8 is a synthetic progestogen steroid hormone. This compound is significant for its role as a key pharmaceutical intermediate and active ingredient in the development of hormonal therapies. It is primarily needed by manufacturers in the pharmaceutical and life sciences industries for research and production purposes.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of advanced hormonal drugs and therapeutic agents.
• Progestogen Research: Used in biochemical and pharmacological research to study progesterone receptor activity and related pathways.
• Reference Standard: Employed as a high-purity analytical standard in quality control laboratories for method development and validation.
• Veterinary Medicine: Potential application in the formulation of hormonal treatments for animal health.
• Academic & Institutional Research: Utilized in university and institutional settings for studies in endocrinology and steroid chemistry.

Basic Information

Item	Detail
Product Name	Quingestrone
CAS No.	67-95-8
Molecular Formula	C₂₁H₂₈O₂
Molecular Weight	312.45 g/mol
Synonyms	Quingestrone; 3-Cyclopentyloxy-19-nor-17α-pregna-3,5-dien-20-yn-17-ol; 17α-Ethynyl-3-cyclopentyloxy-19-nor-17α-pregna-3,5-dien-20-yn-17-ol; 17α-Ethynyl-3-cyclopentyloxyestra-3,5-dien-17β-ol; Pregna-3,5-dien-20-yn-17-ol, 3-cyclopentyloxy-19-nor-17α-; 3-Cyclopentyloxy-19-nor-17α-pregna-3,5-dien-20-yn-17β-ol; NSC-69178
EINECS	Contact for details

Quality Control

Our Quingestrone is manufactured under strict quality systems. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets stringent specifications for pharmaceutical use. Certificates of Analysis (COA) documenting full compliance are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
Related Substances (HPLC)	Total impurities ≤2.0% Any single impurity ≤0.5%
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.