7,8-Dihydro-4H-thieno[3,2-β]azepin-5(6H)-one CAS 4751-61-5

Purity 97%+In StockPharmaceutical Standards
CAS No.4751-61-5
Molecular FormulaC8H9NOS
Molecular Weight167.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7,8-Dihydro-4H-thieno[3,2-β]azepin-5(6H)-one CAS 4751-61-5 chemical structure

Description

The occurrence of 7,8-Dihydro-4H-thieno[3,2-β]azepin-5(6H)-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

7,8-Dihydro-4H-thieno[3,2-β]azepin-5(6H)-one (CAS 4751-61-5) is a high-purity analytical reference standard with the molecular formula C8H9NOS and a molecular weight of 167.23 g/mol.

The molecular framework of 7,8-Dihydro-4H-thieno[3,2-β]azepin-5(6H)-one (C8H9NOS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, 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. 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).

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), 7,8-Dihydro-4H-thieno[3,2-β]azepin-5(6H)-one 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 FormulaC8H9NOS
Molecular Weight167.23 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms1
Sulfur Atoms1

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