4-Bromo-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one CAS 5426-65-3

Description

Compared with other compounds in its class, the molecular weight of 267.12 g/mol gives 4-Bromo-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Bromo-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 5426-65-3), molecular formula C11H11BrN2O and molecular weight 267.12 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Bromo-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (C11H11BrN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 267.12 g/mol, it falls into the medium-molecular-weight range. 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), 4-Bromo-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-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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