(E)-4-((3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)amino)-4-oxobut-2-enoic acid CAS 314282-77-4

Purity 97%+In StockPharmaceutical Standards
CAS No.314282-77-4
Molecular FormulaC12H10N2O3S
Molecular Weight262.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-4-((3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)amino)-4-oxobut-2-enoic acid CAS 314282-77-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 262.28 g/mol gives (E)-4-((3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)amino)-4-oxobut-2-enoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(E)-4-((3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)amino)-4-oxobut-2-enoic acid (CAS 314282-77-4) is a high-purity analytical reference standard with the molecular formula C12H10N2O3S and a molecular weight of 262.28 g/mol.

The molecular framework of (E)-4-((3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)amino)-4-oxobut-2-enoic acid (C12H10N2O3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), (E)-4-((3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)amino)-4-oxobut-2-enoic acid 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 FormulaC12H10N2O3S
Molecular Weight262.28 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2
Sulfur Atoms1

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