4,5-Dichloro-2-(tetrahydro-2H-pyran-3-yl)pyridazin-3(2H)-one CAS 1245649-65-3

Description

Structurally, 4,5-Dichloro-2-(tetrahydro-2H-pyran-3-yl)pyridazin-3(2H)-one (C9H10Cl2N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 249.09 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).

4,5-Dichloro-2-(tetrahydro-2H-pyran-3-yl)pyridazin-3(2H)-one (CAS 1245649-65-3) is a high-purity analytical reference standard with the molecular formula C9H10Cl2N2O2 and a molecular weight of 249.09 g/mol.

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), 4,5-Dichloro-2-(tetrahydro-2H-pyran-3-yl)pyridazin-3(2H)-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

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