5-Methoxypyrazine-2-sulfonyl chloride CAS 1108654-58-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1108654-58-5
Molecular FormulaC5H5ClN2O3S
Molecular Weight208.62 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methoxypyrazine-2-sulfonyl chloride CAS 1108654-58-5 chemical structure

Description

CATO manufactures 5-Methoxypyrazine-2-sulfonyl chloride 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.

5-Methoxypyrazine-2-sulfonyl chloride (CAS 1108654-58-5), molecular formula C5H5ClN2O3S and molecular weight 208.62 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-Methoxypyrazine-2-sulfonyl chloride (C5H5ClN2O3S) contains an amide group, a sulfone group, a carboxylic acid 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 208.62 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.

Physical & Chemical Properties

Molecular FormulaC5H5ClN2O3S
Molecular Weight208.62 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, water
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
CAS Registry Year (est.)1989
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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