Description

(22E)-Ergosta-7,22-Diene-3β-Ol CAS NO 17608-76-3 is a high-purity sterol derivative, a key intermediate in the synthesis of vitamin D2 (ergocalciferol) and other biologically active steroidal compounds. Its defined stereochemistry and purity are critical for ensuring consistent yields and quality in downstream pharmaceutical and nutraceutical manufacturing. This compound is essential for suppliers and manufacturers in the pharmaceutical, research, and fine chemical sectors requiring a reliable, high-quality building block for steroid synthesis.

Application

• Pharmaceutical Intermediate: A crucial precursor in the commercial and research-scale synthesis of Vitamin D2 (Ergocalciferol).
• Nutraceutical Production: Used in the manufacture of vitamin-fortified foods and dietary supplements.
• Steroid Research: Serves as a key starting material or reference standard in the study of sterol metabolism and biosynthesis.
• Fine Chemical Synthesis: Employed as a chiral building block for the synthesis of more complex steroidal molecules with potential biological activity.
• Biochemical Studies: Used in research to investigate membrane structure and function due to its sterol nature.
• Reference Standard: Utilized in analytical laboratories for method development and quality control of sterol-containing products.

Basic Information

Product Name	(22E)-Ergosta-7,22-Diene-3β-Ol
CAS No.	17608-76-3
Molecular Formula	C₂₈H₄₆O
Molecular Weight	398.67 g/mol
Synonyms	Ergosta-7,22-dien-3β-ol; (22E)-Ergosta-7,22-dien-3-ol; 7,22-Ergostadien-3β-ol; Provitamin D2; 5,7,22-Ergostatrien-3β-ol (common misnomer); Ergosterol precursor; δ7,22-Ergostadien-3β-ol; 3β-Hydroxyergosta-7,22-diene
EINECS	Contact for details

Quality Control

Our (22E)-Ergosta-7,22-Diene-3β-Ol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by spectroscopic methods (IR, NMR), to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) documenting purity, physical characteristics, and test results are available upon request.

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. 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)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Melting Point	Specification available upon request
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.