Description

Alpha, Beta, Beta 20R 24R-Ethylcholestane is a high-purity, synthetic sterane derivative, a key structural analog used in advanced chemical research and development. This compound is valued for its role as a critical reference standard and synthetic intermediate in the study of complex organic molecules and natural product synthesis. It is essential for researchers and manufacturers in the pharmaceutical, fine chemical, and advanced materials sectors who require precise, high-quality building blocks for complex molecular architectures.

Application

• Pharmaceutical Reference Standard: Used as a certified reference material (CRM) for analytical method development, validation, and quality control in sterol and steroid analysis.
• Organic Synthesis Intermediate: Serves as a sophisticated building block for the synthesis of novel steroidal compounds, drug candidates, and bioactive molecules.
• Geochemical Biomarker Research: Acts as a model compound in petroleum and environmental geochemistry for studying sterane distributions and maturation processes.
• Academic & Industrial R&D: Employed in fundamental research exploring sterol chemistry, molecular recognition, and the development of new catalytic processes.
• Fine Chemical Production: Utilized in the manufacture of specialty chemicals where specific sterane frameworks are required for advanced applications.

Basic Information

Product Name	Alpha, Beta, Beta 20R 24R-Ethylcholestane
CAS No.	71117-92-5
Molecular Formula	C₂₉H₅₂
Molecular Weight	400.73 g/mol
Synonyms	20R-24R-Ethylcholestane; 24R-20R-Ethylcholestane; (20R,24R)-Ethylcholestane; Ethylcholestane (20R,24R)-isomer; Sterane C29; 5α,14α,17α-20R-24R-Ethylcholestane; 24-Ethyl-5α-cholestane (20R,24R); Synthetic Sterane Standard
EINECS	Contact for details

Quality Control

Our Alpha, Beta, Beta 20R 24R-Ethylcholestane is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles, generated using validated analytical methods including HPLC, GC, and NMR. We support compliance with relevant research and quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Specification available upon request
Specific Rotation	Specification available upon request
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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