2-Nitro-N-(6-oxo-5,6-dihydro-4H-cyclopenta[b]thiophen-4-yl)benzenesulfonamide CAS 865659-01-4

Purity 97%+In StockPharmaceutical Standards
CAS No.865659-01-4
Molecular FormulaC13H10N2O5S2
Molecular Weight338.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Nitro-N-(6-oxo-5,6-dihydro-4H-cyclopenta[b]thiophen-4-yl)benzenesulfonamide CAS 865659-01-4 chemical structure

Description

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.

2-Nitro-N-(6-oxo-5,6-dihydro-4H-cyclopenta[b]thiophen-4-yl)benzenesulfonamide (CAS 865659-01-4), molecular formula C13H10N2O5S2 and molecular weight 338.36 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 2-Nitro-N-(6-oxo-5,6-dihydro-4H-cyclopenta[b]thiophen-4-yl)benzenesulfonamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 338.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures 2-Nitro-N-(6-oxo-5,6-dihydro-4H-cyclopenta[b]thiophen-4-yl)benzenesulfonamide 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 FormulaC13H10N2O5S2
Molecular Weight338.36 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms2
Sulfur Atoms2

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