Description

20E-Dehydrocholesterol is a sterol derivative and a key intermediate in the biosynthesis of vitamin D and other important steroid compounds. This high-purity intermediate is critical for ensuring the quality and efficacy of downstream pharmaceutical and nutraceutical products. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for synthesis and analytical purposes.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthetic pathways for vitamin D analogs and other therapeutic steroids.
• Biochemical Research: Used as a standard or reagent in studies of sterol metabolism, enzyme activity, and metabolic pathways.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in HPLC, GC, and other chromatographic techniques.
• Nutraceutical Synthesis: Employed in the research and development of advanced dietary supplements and vitamin formulations.
• Fine Chemical Synthesis: Acts as a building block for the synthesis of complex steroid molecules with specific biological activities.

Basic Information

Product Name	20E-Dehydrocholesterol
CAS No.	34347-28-9
Molecular Formula	C27H44O
Molecular Weight	384.64 g/mol
Synonyms	(20E)-Dehydrocholesterol; 20-Dehydrocholesterol; 5,7-Cholestadien-3β-ol; 5,7-Cholestadien-3β-ol, (20E)-; Provitamin D4; δ5,7-Cholestadien-3β-ol
EINECS	Contact for details

Quality Control

Our 20E-Dehydrocholesterol is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) with detailed chromatographic data are provided to guarantee traceability and batch-to-batch consistency.

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 and in original packaging until use to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Specific Rotation	Contact for details
Heavy Metals	< 10 ppm

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