Isobarbaloin CAS 5133-19-7

Purity >95%In StockPharmaceutical Standards
CAS No.5133-19-7
Molecular FormulaC21H22O9
Molecular Weight418.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Isobarbaloin CAS 5133-19-7 chemical structure

Description

Isobarbaloin (CAS 5133-19-7), molecular formula C21H22O9 and molecular weight 418.39 g/mol, is a CATO reference standard with documented purity and traceability.

Isobarbaloin (C21H22O9) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), Isobarbaloin meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC21H22O9
Molecular Weight418.39 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

Recommended Standards

Why CATO?