Description

(20R,22R,24S,25S,28R)-2β,3β,5,14,20,22,28-Heptahydroxy-6-Oxo-5β-Stigmasta-7-Ene-27-Oic Acid γ-Lactone is a highly functionalized stigmastane-type steroidal lactone, valued for its complex molecular architecture and bioactive potential. This compound is of significant interest in advanced pharmaceutical research and development, particularly for its role as a key synthetic intermediate or a reference standard. It is primarily sought by research institutions, pharmaceutical companies, and fine chemical manufacturers engaged in steroid chemistry, drug discovery, and the synthesis of novel therapeutic agents.

Application

• Pharmaceutical Reference Standard: Used for the qualitative and quantitative analysis of related steroid compounds in method development and quality control (QC/QA) laboratories.
• Advanced Synthetic Intermediate: Serves as a crucial building block in the multi-step synthesis of complex steroidal drugs and novel chemical entities due to its multiple reactive hydroxyl and carbonyl groups.
• Biochemical Research: Employed in studies investigating steroid biosynthesis pathways, enzyme inhibition, and receptor binding activities.
• Active Pharmaceutical Ingredient (API) Development: Explored as a potential precursor or core structure in the development of new therapeutic agents targeting metabolic or hormonal pathways.
• Academic Research: Utilized in university and institutional labs for chemical education and research projects focused on natural product chemistry and organic synthesis.

Basic Information

Product Name	(20R,22R,24S,25S,28R)-2β,3β,5,14,20,22,28-Heptahydroxy-6-Oxo-5β-Stigmasta-7-Ene-27-Oic Acid γ-Lactone
CAS No.	22799-11-7
Molecular Formula	C29H42O9
Molecular Weight	534.64 g/mol
Synonyms	2β,3β,5,14,20,22,28-Heptahydroxy-6-oxo-5β-stigmast-7-en-27-oic acid γ-lactone; (20R,22R,24S,25S,28R)-Heptahydroxy-6-oxostigmast-7-en-27-oic acid γ-lactone; Stigmasta-7-ene-2,3,5,14,20,22,28-heptol-6-one, 27-oic acid γ-lactone; A representative steroidal lactone.
EINECS	Contact for details

Quality Control

Our high-purity (20R,22R,24S,25S,28R)-2β,3β,5,14,20,22,28-Heptahydroxy-6-Oxo-5β-Stigmasta-7-Ene-27-Oic Acid γ-Lactone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, MS), to ensure it meets exacting standards for research and development use. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and easily oxidized; for long-term storage, consider storing under an inert atmosphere such as argon or nitrogen in a desiccated environment.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 0.5%

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