Description

(22R)-5,6β,22,27-Tetrahydroxy-1-Oxo-5α-Ergosta-2,24-Dien-26-Oic Acid δ-Lactone CAS NO 19891-82-8 is a high-purity, complex ergostane-type steroidal lactone. This compound serves as a critical advanced pharmaceutical intermediate and a valuable reference standard for analytical and research purposes. It is primarily required by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in the synthesis of novel bioactive molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel steroidal drugs and bioactive compounds.
• Reference Standard: High-purity material for use in analytical method development, validation, and quality control (QC) testing in pharmaceutical and research settings.
• Biochemical Research: Used in academic and industrial research to study sterol biosynthesis, enzyme inhibition, and structure-activity relationships (SAR).
• Precursor for Derivatives: Serves as a starting material for the preparation of specialized steroidal analogs with potential therapeutic applications.

Basic Information

Product Name	(22R)-5,6β,22,27-Tetrahydroxy-1-Oxo-5α-Ergosta-2,24-Dien-26-Oic Acid δ-Lactone
CAS No.	19891-82-8
Molecular Formula	C₂₈H₄₀O₆
Molecular Weight	472.62 g/mol
Synonyms	5,6β,22,27-Tetrahydroxy-1-oxo-5α-ergosta-2,24-dien-26-oic acid δ-lactone; (22R)-Ergosta-2,24-dien-26-oic acid, 5,6,22,27-tetrahydroxy-1-oxo-, δ-lactone, (5α,6β,22R)-; 5α-Ergosta-2,24-dien-26-oic acid, 5,6β,22,27-tetrahydroxy-1-oxo-, δ-lactone, (22R)-; A complex ergostane lactone; Steroidal lactone intermediate.
EINECS	Contact for details

Quality Control

Our (22R)-5,6β,22,27-Tetrahydroxy-1-Oxo-5α-Ergosta-2,24-Dien-26-Oic Acid δ-Lactone is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification (IR, NMR), to ensure it meets exacting specifications for research and synthesis. Certificates of Analysis (COA) documenting identity, purity, and related substances are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%

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