Description

(18α,19α)-Urs-20-Ene-3,16-Dione CAS NO 42482-68-8 is a high-purity, semi-synthetic triterpenoid derivative, structurally related to ursolic acid. This compound serves as a critical advanced intermediate in pharmaceutical research and fine chemical synthesis, offering a defined scaffold for further chemical modification. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, nutraceutical, and high-value specialty chemical sectors for developing novel bioactive compounds.

Application

• Pharmaceutical Intermediate: Key starting material or advanced intermediate for the synthesis of novel triterpenoid-based drug candidates targeting inflammation, metabolic disorders, and oncology.
• Biochemical Research: Reference standard and probe molecule for studying enzyme inhibition, receptor binding, and metabolic pathways involving pentacyclic triterpenoids.
• Nutraceutical Development: A precursor for the development of enhanced bioavailability forms of ursane-type triterpenes for dietary supplements.
• Fine Chemical Synthesis: Building block for creating specialized ligands, chiral auxiliaries, and complex natural product analogs in organic chemistry.
• Cosmeceutical Actives: Investigated for use in the development of high-performance skincare ingredients due to the bioactivity profile of the ursane skeleton.

Basic Information

Product Name	(18α,19α)-Urs-20-Ene-3,16-Dione
CAS No.	42482-68-8
Molecular Formula	C30H46O2
Molecular Weight	438.70 g/mol
Synonyms	Urs-20-ene-3,16-dione; 3,16-Dioxours-20-ene; (18α,19α)-Urs-20-ene-3,16-dione; 3β-Hydroxyurs-20-en-16-one (related); Ursane-3,16-dione derivative; 16-Oxours-20-en-3-one; Triterpenoid dione
EINECS	Contact for details

Quality Control

Every batch of (18α,19α)-Urs-20-Ene-3,16-Dione is manufactured under strict quality management systems. We employ advanced analytical techniques including HPLC, GC-MS, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specification parameters is provided with each shipment to guarantee it meets the stringent requirements for research and development 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 (store away from light) and should be handled under inert atmosphere to minimize potential oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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