7-Methyl-2-(4-methylpiperazine-1-carbonyl)-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidin-4-one CAS 1021212-39-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1021212-39-4
Molecular FormulaC17H18N4O2S
Molecular Weight342.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Methyl-2-(4-methylpiperazine-1-carbonyl)-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidin-4-one CAS 1021212-39-4 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.

7-Methyl-2-(4-methylpiperazine-1-carbonyl)-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidin-4-one (CAS 1021212-39-4), molecular formula C17H18N4O2S and molecular weight 342.42 g/mol, is a CATO reference standard with documented purity and traceability.

7-Methyl-2-(4-methylpiperazine-1-carbonyl)-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidin-4-one (C17H18N4O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).

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 FormulaC17H18N4O2S
Molecular Weight342.42 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Nitrogen Atoms4
Sulfur Atoms1

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