Thieno[2,3-b]pyrazine-2,3(1H,4H)-dione CAS 149587-32-6

Purity 97%+In StockPharmaceutical Standards
CAS No.149587-32-6
Molecular FormulaC6H4N2O2S
Molecular Weight168.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Thieno[2,3-b]pyrazine-2,3(1H,4H)-dione CAS 149587-32-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 168.17 g/mol gives Thieno[2,3-b]pyrazine-2,3(1H,4H)-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Thieno[2,3-b]pyrazine-2,3(1H,4H)-dione (CAS 149587-32-6), a certified reference material (molecular formula C6H4N2O2S, MW 168.17 g/mol) for analytical method development and quality control.

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Thieno[2,3-b]pyrazine-2,3(1H,4H)-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC6H4N2O2S
Molecular Weight168.17 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1999
Nitrogen Atoms2
Sulfur Atoms1

Related Thieno Standards

Recommended Standards

Why CATO?