2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-sulfonyl chloride CAS 952-10-3

Purity 97%+In StockPharmaceutical Standards
CAS No.952-10-3
Molecular FormulaC8H11ClN2O4S
Molecular Weight266.70 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-sulfonyl chloride CAS 952-10-3 chemical structure

Description

The occurrence of 2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-sulfonyl chloride is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-sulfonyl chloride (CAS 952-10-3), molecular formula C8H11ClN2O4S and molecular weight 266.70 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-sulfonyl chloride (C8H11ClN2O4S) 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 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 266.70 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC8H11ClN2O4S
Molecular Weight266.70 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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