2,2-Bis(4-hydroxy-2-oxo-2H-chromen-3-yl)acetic acid CAS 567-83-9

Purity 97%+In StockPharmaceutical Standards
CAS No.567-83-9
Molecular FormulaC20H12O8
Molecular Weight380.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2-Bis(4-hydroxy-2-oxo-2H-chromen-3-yl)acetic acid CAS 567-83-9 chemical structure

Description

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO supplies 2,2-Bis(4-hydroxy-2-oxo-2H-chromen-3-yl)acetic acid (CAS 567-83-9), a certified reference material (molecular formula C20H12O8, MW 380.30 g/mol) for analytical method development and quality control.

Structurally, 2,2-Bis(4-hydroxy-2-oxo-2H-chromen-3-yl)acetic acid (C20H12O8) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 380.30 g/mol, it falls into the moderately-high-molecular-weight range. 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).

As a certified reference material (CRM), 2,2-Bis(4-hydroxy-2-oxo-2H-chromen-3-yl)acetic acid 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 FormulaC20H12O8
Molecular Weight380.30 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, 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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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