Description

(3Beta,24S)-Stigmast-5-En-3-Ol CAS NO 83-47-6 is a high-purity phytosterol, specifically a stereoisomer of β-sitosterol, known for its consistent molecular structure and quality. This compound is a critical intermediate and reference standard in pharmaceutical research and the synthesis of specialized steroid derivatives. It is essential for manufacturers and R&D laboratories in the pharmaceutical, nutraceutical, and advanced chemical synthesis sectors seeking reliable, high-grade sterol materials.

Application

• Pharmaceutical Intermediate: Used in the research and synthesis of novel steroid-based drugs and active pharmaceutical ingredients (APIs).
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in chromatographic analysis (HPLC, GC).
• Nutraceutical Research: A key material in studying the bioactivity, metabolism, and formulation of plant sterols for dietary supplements.
• Biochemical Research: Employed in studies of lipid membranes, cholesterol metabolism, and as a probe in biochemical assays.
• Cosmetic Ingredient Synthesis: Acts as a starting material for producing sterol esters and other derivatives used in high-end skincare formulations.
• Chemical Synthesis: A versatile chiral building block for the preparation of more complex steroid molecules in organic chemistry.

Basic Information

Product Name	(3Beta,24S)-Stigmast-5-En-3-Ol
CAS No.	83-47-6
Molecular Formula	C29H50O
Molecular Weight	414.71 g/mol
Synonyms	24S-β-Sitosterol; (24S)-Stigmast-5-en-3β-ol; Clionasterol; 24-Epibeta-sitosterol; (3β,24S)-Stigmast-5-en-3-ol; 24S-Stigmast-5-en-3β-ol; 24-Epibeta-sitosterol; (24S)-β-Sitosterol
EINECS	201-480-6

Quality Control

Our (3Beta,24S)-Stigmast-5-En-3-Ol is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing including HPLC, GC, and spectroscopic methods to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support compliance with cGMP and ISO standards for pharmaceutical and fine chemical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container sealed to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	136 - 140 °C
Specific Rotation	-30° to -38° (c=1 in CHCl3)
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.