Description

24-Dehydrocholecalciferol is a key intermediate in the synthesis of vitamin D analogs and related steroidal compounds. This compound is of significant value in pharmaceutical research and development, particularly for creating novel therapeutics targeting calcium metabolism and cell differentiation. It is primarily required by manufacturers and R&D laboratories in the pharmaceutical, nutraceutical, and fine chemical sectors for the production of high-value active pharmaceutical ingredients (APIs) and reference standards.

Application

• Pharmaceutical Intermediate: A critical precursor in the multi-step synthesis of advanced vitamin D3 analogs and metabolites.
• Research & Development: Used as a reference standard and building block in medicinal chemistry for studying vitamin D receptor (VDR) activity and metabolic pathways.
• Fine Chemical Synthesis: Serves as a specialized starting material for producing high-purity steroidal compounds for biological evaluation.
• Nutraceutical Development: Employed in the research phase for developing novel vitamin D-based dietary supplements and fortificants.
• Biochemical Research: Utilized in studies investigating the biosynthesis and function of secosteroids in biological systems.

Basic Information

Product Name	24-Dehydrocholecalciferol
CAS No.	63819-59-0
Molecular Formula	C27H42O
Molecular Weight	382.63 g/mol
Synonyms	(24E)-24-Dehydrocholecalciferol; 24-Dehydrovitamin D3; (3β,5Z,7E)-9,10-Secocholesta-5,7,10(19),24-tetraen-3-ol; 24,25-Didehydrocholecalciferol; Provitamin D3 analog; Vitamin D3 intermediate; Sterol intermediate
EINECS	Contact for details

Quality Control

Our 24-Dehydrocholecalciferol is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for pharmaceutical intermediate applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed in a dry environment and protected from light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 1.0%
Loss on Drying	≤ 0.5%

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