Description

(24S)-24-Ethyl-22,23,25,27-Tetradehydrocholesterol is a high-purity sterol derivative and a key intermediate in the synthesis of complex bioactive molecules. This compound matters for its role as a precise building block in pharmaceutical research and fine chemical manufacturing, enabling the development of novel therapeutic agents. It is primarily needed by R&D laboratories and production facilities in the pharmaceutical, biotechnology, and advanced material science sectors.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of vitamin D analogs, steroid hormones, and other sterol-based active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a reference standard or substrate in enzymatic studies, metabolic pathway analysis, and receptor binding assays.
• Fine Chemical Synthesis: Serves as a specialized building block for constructing complex molecular architectures in medicinal chemistry and material science.
• Nutraceutical Development: Employed in research for developing novel sterol-based supplements and functional food ingredients.

Basic Information

Product Name	(24S)-24-Ethyl-22,23,25,27-Tetradehydrocholesterol
CAS No.	26315-07-1
Molecular Formula	C₂₉H₄₆O
Molecular Weight	410.68 g/mol
Synonyms	(24S)-24-Ethylcholesta-5,7,22,25-tetraen-3β-ol; 24-Ethyl-22,23,25,27-tetradehydrocholesterol; 24-Ethylidenelophenol; 24-Ethylidenelophenol (24S)-isomer; Stigmasta-5,7,22,25-tetraen-3β-ol; (3β)-Stigmasta-5,7,22,25-tetraen-3-ol
EINECS	Contact for details

Quality Control

Our (24S)-24-Ethyl-22,23,25,27-Tetradehydrocholesterol is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the stringent requirements for research and synthesis. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). This material is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%

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