Description

C27/C28 Diaromatic Steranes are a class of high-purity, specialized aromatic sterane compounds used as critical reference standards and analytical markers. These compounds are essential for precise geochemical analysis, biomarker identification, and advanced organic synthesis. They are primarily utilized by research laboratories, petrochemical companies, and environmental testing facilities requiring definitive compound identification and calibration.

Application

• Geochemical Biomarker Analysis: Serves as a key reference standard for identifying and quantifying sterane distributions in crude oils and source rocks to assess thermal maturity and depositional environment.
• Petroleum Exploration & Reservoir Characterization: Used in advanced fingerprinting techniques to correlate oils, determine source rock origin, and understand migration pathways.
• Environmental Forensics: Acts as a diagnostic tracer for identifying the source and fate of petroleum hydrocarbons in contaminated soil and water samples.
• Organic Geochemistry Research: Critical for academic and industrial research into diagenetic and catagenetic pathways of sterols in sedimentary basins.
• Analytical Method Development & Validation: Employed as a certified reference material (CRM) to calibrate GC-MS and LC-MS systems for high-accuracy sterane analysis.
• Specialty Chemical Synthesis: Used as a sophisticated intermediate or building block in the synthesis of complex organic molecules for pharmaceutical or material science research.

Basic Information

Product Name	C27/C28 Diaromatic Steranes
CAS No.	369364-82-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Diaromatic Steranes (C27-C28); C27-C28 Diaromatic Steroids; Aromatic Steranes; Petroleum Biomarker Steranes; 13β(H),17α(H)-Diacholestane (20S) and related isomers; Geochemical Sterane Standards; Diagnostic Aromatic Hydrocarbons
EINECS	Contact for details

Quality Control

Our C27/C28 Diaromatic Steranes are produced and handled under stringent quality protocols to ensure batch-to-batch consistency and reliability for sensitive analytical applications. Each lot is characterized using advanced chromatographic and spectroscopic techniques, including GC-MS and NMR, to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing purity, chromatographic profile, and storage conditions is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) to prevent oxidation and degradation. Keep the container in a cool, dry, and well-ventilated area away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (GC-MS)	Conforms
Purity (by GC)	≥ 95% (Total of C27 & C28 isomers)
Individual Isomer Ratio	Specified on COA
Solubility	Soluble in common organic solvents (e.g., Dichloromethane, Hexane)

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