3,4,8-Trihydroxy-6H-dibenzo[b,d]pyran-6-one CAS 203631-64-5

Purity 97%+In StockPharmaceutical Standards
CAS No.203631-64-5
Molecular FormulaC13H8O5
Molecular Weight244.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4,8-Trihydroxy-6H-dibenzo[b,d]pyran-6-one CAS 203631-64-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 244.20 g/mol gives 3,4,8-Trihydroxy-6H-dibenzo[b,d]pyran-6-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,4,8-Trihydroxy-6H-dibenzo[b,d]pyran-6-one (CAS 203631-64-5), molecular formula C13H8O5 and molecular weight 244.20 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3,4,8-Trihydroxy-6H-dibenzo[b,d]pyran-6-one (C13H8O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 244.20 g/mol, it falls into the medium-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).

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 manufactures 3,4,8-Trihydroxy-6H-dibenzo[b,d]pyran-6-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC13H8O5
Molecular Weight244.20 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; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2015

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