Ethyl 5-oxo-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate CAS 32278-52-7

Purity 97%+In StockPharmaceutical Standards
CAS No.32278-52-7
Molecular FormulaC9H8N2O3S
Molecular Weight224.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-oxo-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate CAS 32278-52-7 chemical structure

Description

Ethyl 5-oxo-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 32278-52-7) is a high-purity analytical reference standard with the molecular formula C9H8N2O3S and a molecular weight of 224.24 g/mol.

Structurally, Ethyl 5-oxo-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate (C9H8N2O3S) 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 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 224.24 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.

As a certified reference material (CRM), Ethyl 5-oxo-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate 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 FormulaC9H8N2O3S
Molecular Weight224.24 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
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.)1966
Nitrogen Atoms2
Sulfur Atoms1

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