2,2'-bi[1,3]dithiolo[4,5-d][1,3]dithiolylidene CAS 68550-20-9

Purity 97%+In StockPharmaceutical Standards
CAS No.68550-20-9
Molecular FormulaC8H4S8
Molecular Weight356.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2'-bi[1,3]dithiolo[4,5-d][1,3]dithiolylidene CAS 68550-20-9 chemical structure

Description

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

2,2'-bi[1,3]dithiolo[4,5-d][1,3]dithiolylidene (CAS 68550-20-9), molecular formula C8H4S8 and molecular weight 356.64 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to sulfur-containing functionality, an aromatic ring system, 2,2'-bi[1,3]dithiolo[4,5-d][1,3]dithiolylidene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 356.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 2,2'-bi[1,3]dithiolo[4,5-d][1,3]dithiolylidene 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 FormulaC8H4S8
Molecular Weight356.64 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976
Sulfur Atoms8

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