Description

Ergosta-5,7,22-Trien-3-β-Yl Acetate is a high-purity sterol derivative, a key intermediate in the synthesis of vitamin D2 (ergocalciferol) and other biologically active steroidal compounds. Its consistent quality and purity are critical for ensuring the efficacy and safety of downstream pharmaceutical and nutraceutical products. This compound is primarily required by manufacturers in the pharmaceutical, research, and fine chemical sectors for the development of vitamin supplements, active pharmaceutical ingredients (APIs), and reference standards.

Application

• Pharmaceutical Intermediate: A crucial precursor in the multi-step synthesis of Vitamin D2 (Ergocalciferol) and its analogs.
• Nutraceutical Manufacturing: Used in the production of high-purity vitamin D2 for dietary supplements and fortified foods.
• Research & Development: Serves as a key starting material or reference standard in biochemical and pharmacological research related to sterol metabolism.
• Fine Chemical Synthesis: Employed as a building block for synthesizing more complex steroidal molecules with potential therapeutic applications.
• Analytical Standard: Used as a certified reference material (CRM) for quality control and assay development in analytical laboratories.

Basic Information

Product Name	Ergosta-5,7,22-Trien-3-β-Yl Acetate
CAS No.	2418-45-3
Molecular Formula	C₃₀H₄₈O₂
Molecular Weight	440.71 g/mol
Synonyms	Ergosta-5,7,22-trien-3β-ol acetate; (3β)-Ergosta-5,7,22-trien-3-yl acetate; Ergosterol acetate; 5,7,22-Ergostatrien-3β-ol acetate; Vitamin D2 intermediate; Provitamin D2 acetate; 24-Methylcholesta-5,7,22-trien-3β-ol acetate
EINECS	219-331-0

Quality Control

Our Ergosta-5,7,22-Trien-3-β-Yl Acetate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for pharmaceutical and research applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 2-8°C for long-term stability. This product is light-sensitive and easily oxidized; prolonged exposure to air, light, or elevated temperatures should be avoided to maintain purity.

Specification

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

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