Description

(22E)-Ergosta-5,7,22,24(28)-Tetrene-3β-Ol CAS NO 29560-24-5 is a high-purity sterol derivative belonging to the ergostane class, characterized by its conjugated tetraene system. This compound is of significant interest for its role as a key intermediate in the synthesis of vitamin D analogs and other biologically active steroidal molecules. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, nutraceutical, and fine chemical sectors for advanced synthesis and biochemical research.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of vitamin D2 (ergocalciferol) and its synthetic analogs for therapeutic applications.
• Biochemical Research: Used as a reference standard and starting material in studies of sterol metabolism, membrane biology, and photochemical reactions.
• Nutraceutical Synthesis: Serves as a key building block in the production of high-value vitamin and provitamin supplements.
• Fine Chemical Production: Employed in the manufacture of specialized steroidal compounds for various industrial and research purposes.
• Reference Material: Supplied as a certified standard for quality control and analytical method development in laboratories.

Basic Information

Product Name	(22E)-Ergosta-5,7,22,24(28)-Tetrene-3β-Ol
CAS No.	29560-24-5
Molecular Formula	C₂₈H₄₂O
Molecular Weight	394.64 g/mol
Synonyms	Ergosta-5,7,22,24(28)-tetraen-3β-ol; (22E)-Ergosta-5,7,22,24(28)-tetraen-3-ol; Provitamin D2; 5,7,22,24(28)-Ergostatetraen-3β-ol; Ergosterol precursor; 24(28)-Dehydroergosterol; (3β,22E)-Ergosta-5,7,22,24(28)-tetraen-3-ol
EINECS	Contact for details

Quality Control

Our (22E)-Ergosta-5,7,22,24(28)-Tetrene-3β-Ol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing including HPLC, GC, and NMR to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer requirements for research or cGMP-grade material.

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 prevent oxidation and degradation. Keep the container in a cool, dry, and well-ventilated area away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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