7-(3,4-Diethoxyphenyl)-2-(methylsulfanyl)-3H,4H-thieno[3,2-d]pyrimidin-4-one CAS 1291486-87-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1291486-87-7
Molecular FormulaC17H18N2O3S2
Molecular Weight362.47 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-(3,4-Diethoxyphenyl)-2-(methylsulfanyl)-3H,4H-thieno[3,2-d]pyrimidin-4-one CAS 1291486-87-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 362.47 g/mol gives 7-(3,4-Diethoxyphenyl)-2-(methylsulfanyl)-3H,4H-thieno[3,2-d]pyrimidin-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

7-(3,4-Diethoxyphenyl)-2-(methylsulfanyl)-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 1291486-87-7), molecular formula C17H18N2O3S2 and molecular weight 362.47 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C17H18N2O3S2, 7-(3,4-Diethoxyphenyl)-2-(methylsulfanyl)-3H,4H-thieno[3,2-d]pyrimidin-4-one contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 362.47 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), 7-(3,4-Diethoxyphenyl)-2-(methylsulfanyl)-3H,4H-thieno[3,2-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 FormulaC17H18N2O3S2
Molecular Weight362.47 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms2
Sulfur Atoms2

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