3-(2,4-Dimethyl-phenyl)-2-mercapto-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one CAS 565198-73-4

Purity 97%+In StockPharmaceutical Standards
CAS No.565198-73-4
Molecular FormulaC16H16N2OS2
Molecular Weight316.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(2,4-Dimethyl-phenyl)-2-mercapto-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one CAS 565198-73-4 chemical structure

Description

3-(2,4-Dimethyl-phenyl)-2-mercapto-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 565198-73-4) is a high-purity analytical reference standard with the molecular formula C16H16N2OS2 and a molecular weight of 316.44 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 3-(2,4-Dimethyl-phenyl)-2-mercapto-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 316.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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

As a certified reference material (CRM), 3-(2,4-Dimethyl-phenyl)-2-mercapto-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one 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 FormulaC16H16N2OS2
Molecular Weight316.44 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Nitrogen Atoms2
Sulfur Atoms2

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