Description

(18α)-Urs-20-En-16-One CAS NO 66965-53-5 is a high-purity, semi-synthetic triterpenoid derivative of ursolic acid. This compound is valued for its role as a critical pharmaceutical intermediate and a versatile research chemical in the development of novel bioactive molecules. It is primarily sought by manufacturers and research institutions in the pharmaceutical, biotechnology, and fine chemical sectors for advanced synthesis and drug discovery programs.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel therapeutic agents, particularly those targeting metabolic and inflammatory pathways.
• Reference Standard: Used as a certified reference material (CRM) for analytical method development, validation, and quality control in pharmaceutical laboratories.
• Biochemical Research: Serves as a precursor or model compound in studies investigating the structure-activity relationships (SAR) of pentacyclic triterpenoids.
• Fine Chemical Synthesis: Employed in the multi-step synthesis of complex natural product analogs and specialty chemicals with enhanced biological activity.
• Academic Research: Utilized in university and institutional labs for pharmacological screening and mechanistic studies.

Basic Information

Product Name	(18α)-Urs-20-En-16-One
CAS No.	66965-53-5
Molecular Formula	C30H48O
Molecular Weight	424.71 g/mol
Synonyms	16-Oxo-18α-urs-20-ene; 18α-H-16-Oxours-20-ene; Urs-20-en-16-one, (18α)-; 18α-Urs-20-en-16-one; 18α-16-Oxours-20-ene; 18-α-Urs-20-en-16-one; (18α)-Urs-20-en-16-one
EINECS	Contact for details

Quality Control

Our (18α)-Urs-20-En-16-One is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for every shipment to support your regulatory and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

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%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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