Ethyl 5,5-dimethyl-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate CAS 1346672-62-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1346672-62-5
Molecular FormulaC12H16O2S
Molecular Weight224.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5,5-dimethyl-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate CAS 1346672-62-5 chemical structure

Description

CATO supplies Ethyl 5,5-dimethyl-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate (CAS 1346672-62-5), a certified reference material (molecular formula C12H16O2S, MW 224.32 g/mol) for analytical method development and quality control.

The molecular framework of Ethyl 5,5-dimethyl-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate (C12H16O2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

As a certified reference material (CRM), Ethyl 5,5-dimethyl-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylate 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 FormulaC12H16O2S
Molecular Weight224.32 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Sulfur Atoms1

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