4-Oxo-3,4-dihydrothieno[3,2-d]pyrimidine-7-carbaldehyde CAS 1980052-54-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1980052-54-7
Molecular FormulaC7H4N2O2S
Molecular Weight180.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Oxo-3,4-dihydrothieno[3,2-d]pyrimidine-7-carbaldehyde CAS 1980052-54-7 chemical structure

Description

The occurrence of 4-Oxo-3,4-dihydrothieno[3,2-d]pyrimidine-7-carbaldehyde is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Oxo-3,4-dihydrothieno[3,2-d]pyrimidine-7-carbaldehyde (CAS 1980052-54-7), molecular formula C7H4N2O2S and molecular weight 180.18 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Oxo-3,4-dihydrothieno[3,2-d]pyrimidine-7-carbaldehyde (C7H4N2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 180.18 g/mol, it falls into the medium-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.

CATO manufactures 4-Oxo-3,4-dihydrothieno[3,2-d]pyrimidine-7-carbaldehyde under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC7H4N2O2S
Molecular Weight180.18 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms2
Sulfur Atoms1

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