4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid CAS 177594-45-5

Purity 97%+In StockPharmaceutical Standards
CAS No.177594-45-5
Molecular FormulaC20H12O5
Molecular Weight332.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid CAS 177594-45-5 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid.

CATO supplies 4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (CAS 177594-45-5), a certified reference material (molecular formula C20H12O5, MW 332.31 g/mol) for analytical method development and quality control.

Structurally, 4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (C20H12O5) 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 332.31 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).

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), 4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic 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 FormulaC20H12O5
Molecular Weight332.31 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.)2007

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