Description

20R 23S 24R-Dinosterane is a specific stereoisomer of dinosterane, a diagnostic biomarker compound derived from dinoflagellate sterols. This high-purity reference standard is critical for precise geochemical and environmental analysis. It is primarily utilized by research laboratories and analytical service providers in the petroleum and environmental science industries for biomarker studies, source rock identification, and paleoenvironmental reconstruction.

Application

• Geochemical Biomarker Analysis: Serves as a key reference standard for identifying and quantifying dinosterane in crude oils and sedimentary rock extracts to assess organic matter origin and thermal maturity.
• Petroleum Exploration & Source Rock Evaluation: Used in correlation studies to trace oil back to its source rock, particularly those of marine, dinoflagellate-rich origins.
• Paleoenvironmental Reconstruction: Enables scientists to interpret past oceanic conditions, such as algal blooms and water column stratification, in geological samples.
• Environmental Forensics: Assists in oil spill identification and liability assessment by providing a specific fingerprint for oils derived from certain marine sources.
• Organic Geochemistry Research: Essential for academic and institutional research into the diagenetic pathways of sterols and the development of new biomarker parameters.
• Analytical Method Development & Validation: Used to calibrate instruments like GC-MS and GC-MS/MS, ensuring accuracy and reproducibility in complex hydrocarbon analysis.

Basic Information

Product Name	20R 23S 24R-Dinosterane
CAS No.	146276-34-8
Molecular Formula	C30H54
Molecular Weight	414.8 g/mol
Synonyms	4α,23,24-Trimethyl-5α-cholestane (20R,23S,24S); (20R,23S,24S)-4α,23,24-Trimethyl-5α-cholestane; Dinosterane (20R,23S,24S isomer); 20R,23S,24S-Dinosterane; 4α,23,24-Trimethylcholestane; Dinoflagellate Sterane Biomarker; 5α-Cholestane, 4α,23,24-trimethyl-, (20R,23S,24S)-
EINECS	Contact for details

Quality Control

Every batch of 20R 23S 24R-Dinosterane is produced and analyzed to meet the exacting standards required for geochemical research and analysis. Our products undergo rigorous quality testing, including chromatographic purity verification and structural confirmation, to ensure consistency and reliability. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and analytical methods is provided with each shipment.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Identification (GC-MS)	Conforms to reference
Purity (GC)	≥ 95% (Area %)
Purity (GC-MS)	≥ 90%
Isomeric Purity	≥ 98% (20R,23S,24S isomer)

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