4H-Cyclopenta[2,1-b:3,4-c']dithiophen-4-one CAS 25796-80-9

Purity 97%+In StockPharmaceutical Standards
CAS No.25796-80-9
Molecular FormulaC9H4OS2
Molecular Weight192.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4H-Cyclopenta[2,1-b:3,4-c']dithiophen-4-one CAS 25796-80-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 192.26 g/mol gives 4H-Cyclopenta[2,1-b:3,4-c']dithiophen-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4H-Cyclopenta[2,1-b:3,4-c']dithiophen-4-one (CAS 25796-80-9), molecular formula C9H4OS2 and molecular weight 192.26 g/mol, is a CATO reference standard with documented purity and traceability.

4H-Cyclopenta[2,1-b:3,4-c']dithiophen-4-one (C9H4OS2) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC9H4OS2
Molecular Weight192.26 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Sulfur Atoms2

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