2-(Chloromethyl)-5-(thiophen-2-yl)-3H,4H-thieno[2,3-d]pyrimidin-4-one CAS 255378-83-7

Purity 97%+In StockPharmaceutical Standards
CAS No.255378-83-7
Molecular FormulaC11H7ClN2OS2
Molecular Weight282.77 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(Chloromethyl)-5-(thiophen-2-yl)-3H,4H-thieno[2,3-d]pyrimidin-4-one CAS 255378-83-7 chemical structure

Description

2-(Chloromethyl)-5-(thiophen-2-yl)-3H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 255378-83-7), molecular formula C11H7ClN2OS2 and molecular weight 282.77 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H7ClN2OS2, 2-(Chloromethyl)-5-(thiophen-2-yl)-3H,4H-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 282.77 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 2-(Chloromethyl)-5-(thiophen-2-yl)-3H,4H-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 FormulaC11H7ClN2OS2
Molecular Weight282.77 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms2

Related Chloromethyl Standards

Recommended Standards

Why CATO?