2-(3,4-Dimethoxyphenyl)-4H-benzo[d][1,3]oxazin-4-one CAS 40728-72-1

Purity 97%+In StockPharmaceutical Standards
CAS No.40728-72-1
Molecular FormulaC16H13NO4
Molecular Weight283.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(3,4-Dimethoxyphenyl)-4H-benzo[d][1,3]oxazin-4-one CAS 40728-72-1 chemical structure

Description

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

CATO supplies 2-(3,4-Dimethoxyphenyl)-4H-benzo[d][1,3]oxazin-4-one (CAS 40728-72-1), a certified reference material (molecular formula C16H13NO4, MW 283.28 g/mol) for analytical method development and quality control.

Based on its molecular formula C16H13NO4, 2-(3,4-Dimethoxyphenyl)-4H-benzo[d][1,3]oxazin-4-one contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 283.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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-(3,4-Dimethoxyphenyl)-4H-benzo[d][1,3]oxazin-4-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 FormulaC16H13NO4
Molecular Weight283.28 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Nitrogen Atoms1

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