7-Methyl-6-oxo-N-(thiophen-2-ylmethyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide CAS 1396747-53-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1396747-53-7
Molecular FormulaC14H15N3O2S2
Molecular Weight321.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Methyl-6-oxo-N-(thiophen-2-ylmethyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide CAS 1396747-53-7 chemical structure

Description

The occurrence of 7-Methyl-6-oxo-N-(thiophen-2-ylmethyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 7-Methyl-6-oxo-N-(thiophen-2-ylmethyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide (CAS 1396747-53-7), a certified reference material (molecular formula C14H15N3O2S2, MW 321.42 g/mol) for analytical method development and quality control.

Structurally, 7-Methyl-6-oxo-N-(thiophen-2-ylmethyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide (C14H15N3O2S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 321.42 g/mol, it falls into the moderately-high-molecular-weight range. 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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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 FormulaC14H15N3O2S2
Molecular Weight321.42 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms3
Sulfur Atoms2

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