Description

24-Methylenecholesterol-D7 is a high-purity, deuterium-labeled internal standard essential for precise quantitative analysis in mass spectrometry. This stable isotope-labeled compound is critical for ensuring accuracy and reliability in analytical methods, particularly when quantifying trace levels of its unlabeled counterpart. It is primarily utilized by analytical laboratories and research institutions in the pharmaceutical, nutritional, and life science sectors for method development, validation, and quality control.

Application

• Internal Standard for LC-MS/MS: Used as a quantitative reference standard in liquid chromatography-tandem mass spectrometry for the analysis of 24-methylenecholesterol and related sterols.
• Metabolic Pathway Studies: Enables tracking and quantification in research focused on cholesterol biosynthesis and plant sterol metabolism.
• Pharmaceutical R&D: Supports drug discovery and development processes where sterol quantification is required, ensuring high analytical precision.
• Nutritional Analysis: Employed in the accurate measurement of phytosterols and related compounds in food, supplements, and biological samples.
• Clinical Research: Facilitates reliable biomarker analysis in studies investigating cholesterol-related health conditions.
• Quality Control & Assurance: Serves as a critical component in GLP/GMP-compliant laboratories for validating analytical methods and ensuring result accuracy.

Basic Information

Product Name	24-Methylenecholesterol-D7
CAS No.	209112-82-3
Molecular Formula	C28H39D7O
Molecular Weight	~401.7 g/mol
Synonyms	(24R)-24-Methylcholesta-5,24(28)-dien-3β-ol-d7; 24-Methylenecholesterol-d7; 24-Methylenelophenol-d7; 24-Methylene-5-cholesten-3β-ol-d7; NSC 146064-d7; Campesterol precursor-d7; (3β)-24-Methylenecholest-5-en-3-ol-d7
EINECS	Contact for details

Quality Control

Our 24-Methylenecholesterol-D7 is manufactured under strict quality systems to ensure exceptional isotopic purity and chemical integrity. Each batch is characterized by advanced analytical techniques including NMR and mass spectrometry to confirm deuterium incorporation and chemical identity. A comprehensive Certificate of Analysis (COA) detailing isotopic purity, chemical purity, and analytical results is provided with every shipment to support your regulatory and research requirements.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (NMR)	Conforms to structure
Identification (MS)	Conforms to structure
Chemical Purity (HPLC)	≥ 98.0%
Isotopic Purity (MS)	≥ 98.0 atom % D
Specific Optical Rotation	Contact for details

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