5-Nitrobenzo[b]thiophene-2-carboxylic acid 1,1-dioxide CAS 475575-63-4

Purity 97%+In StockPharmaceutical Standards
CAS No.475575-63-4
Molecular FormulaC9H5NO6S
Molecular Weight255.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Nitrobenzo[b]thiophene-2-carboxylic acid 1,1-dioxide CAS 475575-63-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 255.20 g/mol gives 5-Nitrobenzo[b]thiophene-2-carboxylic acid 1,1-dioxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5-Nitrobenzo[b]thiophene-2-carboxylic acid 1,1-dioxide (CAS 475575-63-4), a certified reference material (molecular formula C9H5NO6S, MW 255.20 g/mol) for analytical method development and quality control.

Based on its molecular formula C9H5NO6S, 5-Nitrobenzo[b]thiophene-2-carboxylic acid 1,1-dioxide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 255.20 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.

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), 5-Nitrobenzo[b]thiophene-2-carboxylic acid 1,1-dioxide 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 FormulaC9H5NO6S
Molecular Weight255.20 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1
Sulfur Atoms1

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