Description

4Alpha-Methyl-(24R)-Ethyl-5Alpha(H),14Alpha(H),17Alpha(H)-Cholestane is a high-purity sterane biomarker compound, specifically a C30 stanol, used as a critical reference standard in geochemical and environmental analysis. Its precise stereochemistry makes it an invaluable tool for researchers and laboratories requiring definitive identification and quantification of complex organic mixtures. This compound is essential for professionals in the petroleum geochemistry, environmental forensics, and advanced organic geoscience sectors who need reliable, high-fidelity standards for biomarker studies and source rock evaluation.

Application

• Biomarker Reference Standard in Petroleum Geochemistry: Used for the identification and quantification of steranes in crude oils and source rock extracts to assess thermal maturity, depositional environment, and organic matter origin.
• Environmental Forensics and Pollution Tracing: Serves as a diagnostic tool to trace the source and fate of petroleum hydrocarbons in contaminated soils, sediments, and water.
• Organic Geoscience Research: A key analytical standard in fundamental research studying diagenesis and catagenesis of organic matter in geological formations.
• Calibration for GC-MS and GC-MS/MS Systems: Provides a definitive standard for instrument calibration and method validation in sophisticated chromatographic analyses.
• Quality Control in Laboratory Testing: Employed by commercial testing laboratories to ensure the accuracy and precision of their biomarker analysis services for the energy sector.

Basic Information

Product Name	4Alpha-Methyl-(24R)-Ethyl-5Alpha(H),14Alpha(H),17Alpha(H)-Cholestane
CAS No.	53596-90-0
Molecular Formula	C30H54
Molecular Weight	414.75 g/mol
Synonyms	4α-Methyl-24R-ethyl-5α(H),14α(H),17α(H)-cholestane; 4α-Methyl-24R-ethylcholestane; Dinosterane (C30); 4α,23,24-Trimethyl-5α(H),14α(H),17α(H)-cholestane (20R); 4α-Methyl-24-ethyl-5α,14α,17α-cholestane; C30 4α-Methyl-24-ethylcholestane; Geochemical Biomarker C30 Sterane
EINECS	Contact for details

Quality Control

Our 4Alpha-Methyl-(24R)-Ethyl-5Alpha(H),14Alpha(H),17Alpha(H)-Cholestane is manufactured and handled under strict quality protocols to ensure the highest standards of purity and stereochemical integrity required for analytical research. Each batch is characterized using advanced techniques including GC-MS, NMR, and HPLC to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Identification (GC-MS)	Conforms to reference
Purity (HPLC)	≥ 95% (Area %)
Purity (GC)	≥ 98% (Area %)
Stereochemical Purity	≥ 99% (by NMR)
Melting Point	Contact for details

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