N-(5-Chloro-2,4-dimethoxyphenyl)-2-[7-(4-methylphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetamide CAS 1207056-12-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1207056-12-9
Molecular FormulaC23H20ClN3O4S
Molecular Weight469.94 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-(5-Chloro-2,4-dimethoxyphenyl)-2-[7-(4-methylphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetamide CAS 1207056-12-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 469.94 g/mol gives N-(5-Chloro-2,4-dimethoxyphenyl)-2-[7-(4-methylphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

N-(5-Chloro-2,4-dimethoxyphenyl)-2-[7-(4-methylphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetamide (CAS 1207056-12-9) is a high-purity analytical reference standard with the molecular formula C23H20ClN3O4S and a molecular weight of 469.94 g/mol.

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, N-(5-Chloro-2,4-dimethoxyphenyl)-2-[7-(4-methylphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 469.94 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).

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 FormulaC23H20ClN3O4S
Molecular Weight469.94 g/mol
Purity97%+
StorageStore in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms1

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