Description

C28/C29 Ring-C Monoaromatic Sterane is a high-purity, structurally defined sterane compound, a key biomarker used in advanced geochemical and environmental analysis. Its precise molecular architecture makes it an invaluable internal standard and reference material for calibrating analytical instruments and interpreting complex hydrocarbon mixtures. This product is essential for research laboratories and industrial quality control units in the petroleum, environmental science, and organic geochemistry sectors requiring definitive compound identification.

Application

• Geochemical Biomarker Analysis: Serves as a critical reference standard for identifying and quantifying sterane distributions in crude oils and source rock extracts to assess thermal maturity and depositional environment.
• Petroleum Exploration & Refining: Used in fingerprinting studies for oil-oil and oil-source rock correlation, aiding in exploration strategy and reservoir characterization.
• Environmental Forensics: Acts as a diagnostic tracer in the investigation of hydrocarbon pollution incidents to determine the origin and fate of petroleum contaminants in soil and water.
• Analytical Method Development: Employed as a certified reference material (CRM) for developing and validating advanced chromatographic (GC, GC-MS) and spectroscopic methods.
• Organic Geochemistry Research: Provides a pure standard for academic and institutional research into diagenetic and catagenetic pathways of steroidal hydrocarbons.
• Quality Assurance/Quality Control (QA/QC): Implemented as an internal standard in laboratory protocols to ensure accuracy, precision, and reproducibility of sterane-related measurements.

Basic Information

Product Name	C28/C29 Ring-C Monoaromatic Sterane
CAS No.	102045-91-0
Molecular Formula	C28H42 / C29H44
Molecular Weight	378.64 g/mol (C28) / 392.66 g/mol (C29)
Synonyms	Monoaromatic Sterane; Ring-C Monoaromatic Sterane; C28-C29 Monoaromatized Sterane; 5α(H)-Cholestane, Aromatic Derivative; Sterane Aromatic Hydrocarbon; Geochemical Biomarker Standard; Petroleum Fingerprinting Standard; Aromatic Steroidal Hydrocarbon
EINECS	Contact for details

Quality Control

Every batch of C28/C29 Ring-C Monoaromatic Sterane is manufactured and analyzed under strict quality management protocols to ensure identity, purity, and consistency. Our products undergo rigorous quality testing via GC-MS, HPLC, and NMR to ensure compliance with the high standards required for research and analytical applications. A comprehensive Certificate of Analysis (COA) detailing purity, chromatographic data, and spectroscopic confirmation is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term stability, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (GC-MS)	Conforms to reference spectrum
Purity (GC-FID)	≥ 95% (Total C28/C29 Monoaromatic Steranes)
Related Substances (GC)	≤ 5.0% (Total of other steranes and hydrocarbons)
Solubility	Soluble in common organic solvents (e.g., Hexane, Dichloromethane)

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