6-chloro-3-(hydroxyimino)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-one CAS 937602-19-2

Purity 97%+In StockPharmaceutical Standards
CAS No.937602-19-2
Molecular FormulaC8H5ClN2O3
Molecular Weight212.59 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-chloro-3-(hydroxyimino)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-one CAS 937602-19-2 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-(hydroxyimino)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-one.

6-chloro-3-(hydroxyimino)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-one (CAS 937602-19-2), molecular formula C8H5ClN2O3 and molecular weight 212.59 g/mol, is a CATO reference standard with documented purity and traceability.

6-chloro-3-(hydroxyimino)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-one (C8H5ClN2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 6-chloro-3-(hydroxyimino)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-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 FormulaC8H5ClN2O3
Molecular Weight212.59 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms2

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