5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbonylchloride CAS 142329-25-7

Purity 97%+In StockPharmaceutical Standards
CAS No.142329-25-7
Molecular FormulaC8H7ClOS
Molecular Weight186.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbonylchloride CAS 142329-25-7 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.

CATO supplies 5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbonylchloride (CAS 142329-25-7), a certified reference material (molecular formula C8H7ClOS, MW 186.66 g/mol) for analytical method development and quality control.

Structurally, 5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbonylchloride (C8H7ClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 186.66 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

As a certified reference material (CRM), 5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbonylchloride 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 FormulaC8H7ClOS
Molecular Weight186.66 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997
Halogen ContentCl-containing
Sulfur Atoms1

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