2-Chloromethyl-6-ethyl-3H-thieno[2,3-d]pyrimidin-4-one CAS 91225-68-2

Purity 97%+In StockPharmaceutical Standards
CAS No.91225-68-2
Molecular FormulaC9H9ClN2OS
Molecular Weight228.70 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Chloromethyl-6-ethyl-3H-thieno[2,3-d]pyrimidin-4-one CAS 91225-68-2 chemical structure

Description

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.

2-Chloromethyl-6-ethyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 91225-68-2) is a high-purity analytical reference standard with the molecular formula C9H9ClN2OS and a molecular weight of 228.70 g/mol.

Based on its molecular formula C9H9ClN2OS, 2-Chloromethyl-6-ethyl-3H-thieno[2,3-d]pyrimidin-4-one contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 228.70 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

As a certified reference material (CRM), 2-Chloromethyl-6-ethyl-3H-thieno[2,3-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 FormulaC9H9ClN2OS
Molecular Weight228.70 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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