Description

5-α-Cholesta-8,24-Dien-3-β-Ol is a high-purity sterol derivative, a key intermediate in the synthesis of complex steroid molecules and vitamin D analogs. Its defined structure and purity are critical for ensuring the consistency and efficacy of downstream pharmaceutical and research applications. This compound is essential for manufacturers and research institutions in the pharmaceutical, nutraceutical, and fine chemical sectors requiring a reliable, high-quality building block for advanced synthesis.

Application

• Pharmaceutical Intermediate: A crucial starting material or intermediate in the synthesis of specific steroid-based active pharmaceutical ingredients (APIs) and vitamin D metabolites.
• Biochemical Research: Used as a standard or reagent in metabolic pathway studies, enzyme inhibition assays, and research related to cholesterol biosynthesis and regulation.
• Fine Chemical Synthesis: Serves as a versatile chiral building block for the preparation of more complex, functionalized steroidal compounds in organic chemistry.
• Reference Standard: Employed as a high-purity analytical reference standard for quality control and method development in pharmaceutical and analytical laboratories.
• Nutraceutical Development: Investigated for use in the research and development of advanced sterol-based dietary supplements and functional ingredients.

Basic Information

Item	Details
Product Name	5-α-Cholesta-8,24-Dien-3-β-Ol
CAS No.	128-33-6
Molecular Formula	C27H44O
Molecular Weight	384.64 g/mol
Synonyms	5α-Cholesta-8,24-dien-3β-ol; Desmosterol; 24-Dehydrocholesterol; (3β)-Cholesta-5,24-dien-3-ol; 5,24-Cholestadien-3β-ol; 3β-Hydroxy-5α-cholesta-8,24-diene
EINECS	204-887-7

Quality Control

Our 5-α-Cholesta-8,24-Dien-3-β-Ol is manufactured 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 stringent specifications for research and synthesis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) to minimize oxidation and degradation. Keep the container in a cool, dry, and well-ventilated area.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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