6-Chloro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonyl chloride CAS 5791-09-3

Purity 97%+In StockPharmaceutical Standards
CAS No.5791-09-3
Molecular FormulaC8H5Cl2NO4S
Molecular Weight282.10 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Chloro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonyl chloride CAS 5791-09-3 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 6-Chloro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonyl chloride.

6-Chloro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonyl chloride (CAS 5791-09-3) is a high-purity analytical reference standard with the molecular formula C8H5Cl2NO4S and a molecular weight of 282.10 g/mol.

Structurally, 6-Chloro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonyl chloride (C8H5Cl2NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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 282.10 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).

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), 6-Chloro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonyl chloride 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 FormulaC8H5Cl2NO4S
Molecular Weight282.10 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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