Description

(18α,19α)-Urs-20-En-16β-Ol Acetate CAS NO 66394-75-0 is a high-purity, semi-synthetic triterpenoid derivative, specifically an acetate ester of a modified ursane-type alcohol. This compound is valued for its role as a critical advanced pharmaceutical intermediate and a versatile building block in organic synthesis. It is primarily required by pharmaceutical R&D and fine chemical synthesis sectors for developing novel therapeutic agents and bioactive molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel triterpenoid-based drugs targeting inflammation, metabolic disorders, and oncology.
• Research & Development: Used in academic and industrial laboratories for structure-activity relationship (SAR) studies and medicinal chemistry programs.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in pharmaceutical analysis.
• Fine Chemical Synthesis: Acts as a specialized building block for synthesizing complex natural product analogs and other bioactive compounds.
• Biochemical Research: Employed in studies investigating the biological activity and metabolic pathways of triterpenoid derivatives.

Basic Information

Product Name	(18α,19α)-Urs-20-En-16β-Ol Acetate
CAS No.	66394-75-0
Molecular Formula	C32H52O2
Molecular Weight	468.76 g/mol
Synonyms	16β-Acetoxy-18α,19α-urs-20-ene; 18α,19α-Urs-20-en-16β-yl acetate; (18α,19α)-Urs-20-ene-16β-ol acetate; 16β-Hydroxy-18α,19α-urs-20-ene acetate; 3β-Hydroxy-18α,19α-urs-20-en-16β-yl acetate (related IUPAC); Urs-20-ene-16β-ol acetate derivative; Modified Ursane Acetate
EINECS	Contact for details

Quality Control

Our (18α,19α)-Urs-20-En-16β-Ol Acetate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific project or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to 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.