Orobol 7-O-β-D-glucoside CAS 20486-33-3

Purity 97%+In StockPharmaceutical Standards
CAS No.20486-33-3
Molecular FormulaC21H20O11
Molecular Weight448.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Orobol 7-O-β-D-glucoside CAS 20486-33-3 chemical structure

Description

Orobol 7-O-β-D-glucoside (CAS 20486-33-3), molecular formula C21H20O11 and molecular weight 448.38 g/mol, is a CATO reference standard with documented purity and traceability.

Orobol 7-O-β-D-glucoside (C21H20O11) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC21H20O11
Molecular Weight448.38 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962

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