Description

(22E)-Ergosta-5,22-Diene-1α,3β,11α,18-Tetrol 18-Acetate is a specific, high-purity sterol derivative of significant interest in advanced research and development. This compound matters as a critical reference standard and synthetic intermediate for exploring novel bioactive molecules and metabolic pathways. It is primarily needed by pharmaceutical R&D teams, academic research institutions, and specialty chemical manufacturers focused on steroid chemistry, drug discovery, and natural product synthesis.

Application

• Pharmaceutical Research & Development: Serves as a key intermediate or reference standard in the synthesis and study of novel steroidal drugs and bioactive compounds.
• Academic & Biochemical Research: Used as a precise chemical tool to investigate sterol biosynthesis, enzyme mechanisms, and cellular signaling pathways.
• Reference Standard Manufacturing: Supplied as a high-purity certified material for analytical laboratories requiring calibration standards for HPLC, LC-MS, or NMR.
• Natural Product Chemistry: Acts as a building block for the semi-synthesis of complex natural products derived from ergosterol and related fungal or plant sterols.
• Specialty Chemical Synthesis: Employed in the production of advanced fine chemicals, custom sterol derivatives, and other high-value intermediates for industrial R&D.

Basic Information

Product Name	(22E)-Ergosta-5,22-Diene-1α,3β,11α,18-Tetrol 18-Acetate
CAS No.	97190-37-9
Molecular Formula	C₃₀H₄₈O₅
Molecular Weight	488.70 g/mol
Synonyms	1α,3β,11α,18-Tetrahydroxyergosta-5,22-dien-18-yl acetate; (22E)-Ergosta-5,22-diene-1α,3β,11α,18-tetrol, 18-acetate; 18-Acetoxy-1α,3β,11α,18-tetrahydroxyergosta-5,22-diene; Polyhydroxylated Ergostane Derivative; Sterol Acetate Intermediate; Ergosta-5,22-dienetetrol acetate; 97190-37-9
EINECS	Contact for details

Quality Control

Our (22E)-Ergosta-5,22-Diene-1α,3β,11α,18-Tetrol 18-Acetate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and MS for identity verification, to ensure it meets the exacting standards required for research applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at controlled room temperature (15-25°C) in a cool, dry place. The product is light-sensitive; ensure containers are kept in the original packaging or amber glass until use.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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