2-Bromo-5-cyano-3-nitrobenzenesulfonyl chloride CAS 1805581-81-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1805581-81-0
Molecular FormulaC7H2BrClN2O4S
Molecular Weight325.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Bromo-5-cyano-3-nitrobenzenesulfonyl chloride CAS 1805581-81-0 chemical structure

Description

CATO manufactures 2-Bromo-5-cyano-3-nitrobenzenesulfonyl 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.

2-Bromo-5-cyano-3-nitrobenzenesulfonyl chloride (CAS 1805581-81-0), molecular formula C7H2BrClN2O4S and molecular weight 325.52 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H2BrClN2O4S, 2-Bromo-5-cyano-3-nitrobenzenesulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

Physical & Chemical Properties

Molecular FormulaC7H2BrClN2O4S
Molecular Weight325.52 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1995
Halogen ContentCl/Br-containing
Nitrogen Atoms2
Sulfur Atoms1

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