Description

(20R,23R,24R)-Dinosterane is a specific stereoisomer of dinosterane, a biomarker compound derived from dinoflagellate sterols. This high-purity reference standard is critical for precise analytical work in geochemical and environmental research. It is primarily utilized by research laboratories and industrial R&D departments specializing in petroleum exploration, paleoenvironmental reconstruction, and organic geochemistry to calibrate instruments and quantify biomarkers in complex samples.

Application

• Geochemical Biomarker Analysis: Serves as a critical internal or external standard for the identification and quantification of dinosterane and related steranes in sedimentary rocks and crude oils.
• Petroleum Exploration & Source Rock Evaluation: Used to assess the organic matter input, depositional environment, and thermal maturity of source rocks, aiding in oil-source correlation.
• Paleoenvironmental Studies: Enables researchers to trace dinoflagellate contributions in sediment cores, helping to reconstruct past marine conditions and climatic events.
• Environmental Forensics: Assists in fingerprinting the source of hydrocarbon pollution by analyzing the sterane biomarker profile.
• Analytical Method Development & Validation: Provides a certified reference material for developing and calibrating GC-MS (Gas Chromatography-Mass Spectrometry) and LC-MS methods.
• Academic & Industrial Research: Supports fundamental research in organic geochemistry, marine biology, and Earth sciences.

Basic Information

Product Name	(20R,23R,24R)-Dinosterane
CAS No.	146276-37-1
Molecular Formula	C30H54
Molecular Weight	414.75 g/mol
Synonyms	4α,23,24-Trimethyl-5α-cholestane (20R,23R,24R); (20R,23R,24R)-4α,23,24-Trimethyl-5α-cholestane; Dinosterane (20R,23R,24R isomer); 5α-Cholestane, 4α,23,24-trimethyl-, (20R,23R,24R)-; Dinostane; Dinoflagellate sterane biomarker
EINECS	Contact for details

Quality Control

Every batch of (20R,23R,24R)-Dinosterane is produced and analyzed under strict quality management protocols. The identity and purity are verified using advanced analytical techniques including GC-MS and NMR to ensure it meets the high standards required for research and calibration purposes. A comprehensive Certificate of Analysis (COA) detailing purity, analytical methods, and batch-specific data 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 minimize the risk of oxidation. Keep the container in a dry, cool, and well-ventilated area away from incompatible materials.

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 (HPLC)	≥ 97%
Specific Rotation	Contact for details
Water Content	< 0.5% (K.F.)

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