[1,3]Dithiolo[4,5-d][1,3]dithiole-2,5-dione CAS 64394-45-2

Purity 97%+In StockPharmaceutical Standards
CAS No.64394-45-2
Molecular FormulaC4O2S4
Molecular Weight208.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[1,3]Dithiolo[4,5-d][1,3]dithiole-2,5-dione CAS 64394-45-2 chemical structure

Description

The occurrence of [1,3]Dithiolo[4,5-d][1,3]dithiole-2,5-dione is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

[1,3]Dithiolo[4,5-d][1,3]dithiole-2,5-dione (CAS 64394-45-2), molecular formula C4O2S4 and molecular weight 208.30 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, [1,3]Dithiolo[4,5-d][1,3]dithiole-2,5-dione (C4O2S4) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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 208.30 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC4O2S4
Molecular Weight208.30 g/mol
Purity97%+
StorageStore at room temperature
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
CAS Registry Year (est.)1975
Sulfur Atoms4

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