2-(Chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one CAS 16867-35-9

Purity 97%+In StockPharmaceutical Standards
CAS No.16867-35-9
Molecular FormulaC9H7ClN2O
Molecular Weight194.62 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(Chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one CAS 16867-35-9 chemical structure

Description

The occurrence of 2-(Chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 2-(Chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 16867-35-9), a certified reference material (molecular formula C9H7ClN2O, MW 194.62 g/mol) for analytical method development and quality control.

Based on its molecular formula C9H7ClN2O, 2-(Chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 194.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), 2-(Chloromethyl)-4H-pyrido[1,2-a]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 FormulaC9H7ClN2O
Molecular Weight194.62 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961
Halogen ContentCl-containing
Nitrogen Atoms2

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