Description

(18α,19α,20β)-16β-Hydroxyursan-3-One CAS NO 77904-55-3 is a high-purity pentacyclic triterpenoid derivative, specifically a hydroxy-substituted ursane-type compound. This specialized intermediate is valued for its defined stereochemistry and functional groups, which are critical for advanced synthetic pathways in pharmaceutical and fine chemical research. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, biotechnology, and nutraceutical industries for use as a key building block in the synthesis of novel bioactive molecules.

Application

• Pharmaceutical Intermediate: Serves as a crucial chiral precursor for the synthesis of novel triterpenoid-based drug candidates targeting inflammation, metabolic disorders, and oncology.
• Biochemical Research: Used as a reference standard or probe compound in studies investigating the structure-activity relationships (SAR) of natural product derivatives.
• Natural Product Synthesis: A key starting material for the semi-synthesis of complex natural products and their analogs for biological evaluation.
• Fine Chemical Production: Employed in multi-step organic synthesis to introduce the ursane scaffold into more complex molecular architectures.
• Academic Research: Utilized in university and institutional laboratories for methodological development in stereoselective synthesis and natural product chemistry.

Basic Information

Product Name	(18α,19α,20β)-16β-Hydroxyursan-3-One
CAS No.	77904-55-3
Molecular Formula	C30H50O2
Molecular Weight	442.72 g/mol
Synonyms	16β-Hydroxyursan-3-one; Ursan-3-one, 16β-hydroxy-; 16β-Hydroxy-3-oxoursane; (3β,16β)-Ursane-3,16-diol-3-one; 16β-Hydroxy-3-ketoursane; 3-Oxoursan-16β-ol; 16β-Hydroxyursanone
EINECS	Contact for details

Quality Control

Our (18α,19α,20β)-16β-Hydroxyursan-3-One is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR, MS), to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) with detailed chromatographic and spectral data are provided to guarantee traceability, consistency, and reliability for your critical applications.

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 (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.