Description

(18α,19α,20β)-Ursane-3β,16β-Diol CAS NO 42483-54-5 is a high-purity, specific stereoisomer of ursanediol, a triterpenoid derivative of significant interest in advanced research and development. This compound matters as a critical reference standard and a valuable chemical intermediate for synthesizing novel bioactive molecules. It is primarily needed by pharmaceutical R&D laboratories, nutraceutical ingredient manufacturers, and academic institutions focused on medicinal chemistry and natural product research.

Application

• Pharmaceutical Reference Standard: Used for the qualitative and quantitative analysis of ursane-type triterpenoids in drug discovery and quality control processes.
• Medicinal Chemistry Intermediate: Serves as a key chiral building block for the semi-synthesis of novel drug candidates targeting inflammation, metabolic disorders, and oncology.
• Natural Product Research: Employed as an analytical standard in the isolation, identification, and activity studies of triterpenoids from botanical sources.
• Nutraceutical Ingredient Development: Investigated for potential use in high-value dietary supplements and cosmeceuticals due to the bioactivity profile of ursane derivatives.
• Biochemical Research: Utilized in studies exploring enzyme inhibition, receptor binding, and other mechanistic pathways involving pentacyclic triterpenes.

Basic Information

Product Name	(18α,19α,20β)-Ursane-3β,16β-Diol
CAS No.	42483-54-5
Molecular Formula	C30H52O2
Molecular Weight	444.7 g/mol
Synonyms	Ursane-3β,16β-diol; 3β,16β-Dihydroxyursane; (3β,16β)-Ursanediol; 3β,16β-Ursanediol; β-Amyrin diol derivative; 3β,16β-Dihydroxy-urs-12-ene; Urs-12-ene-3β,16β-diol; Pentacyclic triterpene diol
EINECS	Contact for details

Quality Control

Our (18α,19α,20β)-Ursane-3β,16β-Diol is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and spectroscopic methods (NMR, MS) for structural confirmation, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing batch-specific results 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). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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