Description

17Beta(H),21Alpha(H)-(22S)-Tetrakishomohopane is a high-purity, well-defined pentacyclic triterpane biomarker used as a critical reference standard in geochemical and environmental analysis. Its precise stereochemistry makes it an essential tool for the identification and quantification of complex organic mixtures derived from biological sources. This compound is primarily required by research laboratories and analytical service providers in the petroleum geochemistry, environmental forensics, and advanced organic geochemistry sectors for biomarker studies and source rock evaluation.

Application

• Geochemical Biomarker Standard: Serves as a key internal or external standard for gas chromatography-mass spectrometry (GC-MS) analysis of crude oils, source rocks, and sediments.
• Petroleum Exploration & Source Rock Evaluation: Used to assess thermal maturity, depositional environment, and organic matter input in petroleum systems.
• Environmental Forensics: Aids in fingerprinting and tracing the origin of hydrocarbon contamination in soil and water by comparing biomarker distributions.
• Organic Geochemistry Research: Fundamental for academic and industrial research into diagenetic and catagenetic pathways of organic matter.
• Calibration & Method Development: Essential for developing and validating analytical methods in specialized chromatography laboratories.

Basic Information

Product Name	17Beta(H),21Alpha(H)-(22S)-Tetrakishomohopane
CAS No.	79897-70-4
Molecular Formula	C35H62
Molecular Weight	482.87 g/mol
Synonyms	17β(H),21α(H)-(22S)-Tetrakishomohopane; 22S-17β(H),21α(H)-Tetrakishomohopane; (22S)-17β(H),21α(H)-Tetrakishomohopane; C35 17β(H),21α(H)-Hopane; Extended Hopane Biomarker C35; 17β,21α-Hopane (C35, 22S); Tetrakishomohopane Standard; Geochemical Standard 79897-70-4
EINECS	Contact for details

Quality Control

Every batch of 17Beta(H),21Alpha(H)-(22S)-Tetrakishomohopane is characterized using advanced analytical techniques including GC-MS, NMR, and HPLC to ensure structural identity and high chemical purity. Our products undergo rigorous quality testing to ensure compliance with industry standards for reference materials. Certificates of Analysis (COA) detailing batch-specific purity, chromatographic data, and spectroscopic confirmation are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry, cool place. Keep the container tightly sealed to prevent potential contamination or degradation.

Specification

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

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