4H-Thieno[3,2-b]pyrrole CAS 250-94-2

Purity 97%+In StockPharmaceutical Standards
CAS No.250-94-2
Molecular FormulaC6H5NS
Molecular Weight123.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4H-Thieno[3,2-b]pyrrole CAS 250-94-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4H-Thieno[3,2-b]pyrrole.

4H-Thieno[3,2-b]pyrrole (CAS 250-94-2), molecular formula C6H5NS and molecular weight 123.18 g/mol, is a CATO reference standard with documented purity and traceability.

4H-Thieno[3,2-b]pyrrole (C6H5NS) contains a nitrile group, sulfur-containing functionality, 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).

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 FormulaC6H5NS
Molecular Weight123.18 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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms1
Sulfur Atoms1

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