5-chloro-3,4-dihydropyrimidin-4-one CAS 4349-08-0

Purity 97%+In StockPharmaceutical Standards
CAS No.4349-08-0
Molecular FormulaC4H7ClN2O
Molecular Weight134.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-chloro-3,4-dihydropyrimidin-4-one CAS 4349-08-0 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.

5-chloro-3,4-dihydropyrimidin-4-one (CAS 4349-08-0) is a high-purity analytical reference standard with the molecular formula C4H7ClN2O and a molecular weight of 134.56 g/mol.

5-chloro-3,4-dihydropyrimidin-4-one (C4H7ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

As a certified reference material (CRM), 5-chloro-3,4-dihydropyrimidin-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 FormulaC4H7ClN2O
Molecular Weight134.56 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Nitrogen Atoms2

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