2,3-dihydro-1,4-benzodioxepin-5-one CAS 22891-52-7

Purity 97%+In StockPharmaceutical Standards
CAS No.22891-52-7
Molecular FormulaC9H8O3
Molecular Weight164.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3-dihydro-1,4-benzodioxepin-5-one CAS 22891-52-7 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 2,3-dihydro-1,4-benzodioxepin-5-one.

2,3-dihydro-1,4-benzodioxepin-5-one (CAS 22891-52-7) is a high-purity analytical reference standard with the molecular formula C9H8O3 and a molecular weight of 164.16 g/mol.

Structurally, 2,3-dihydro-1,4-benzodioxepin-5-one (C9H8O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 164.16 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), 2,3-dihydro-1,4-benzodioxepin-5-one 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 FormulaC9H8O3
Molecular Weight164.16 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963

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