5-Bromo-1-(3-chloro-4-methylphenyl)-1H-pyrazole-4-carboxylic acid CAS 1399655-44-7

Description

The occurrence of 5-Bromo-1-(3-chloro-4-methylphenyl)-1H-pyrazole-4-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-Bromo-1-(3-chloro-4-methylphenyl)-1H-pyrazole-4-carboxylic acid (CAS 1399655-44-7) is a high-purity analytical reference standard with the molecular formula C11H8BrClN2O2 and a molecular weight of 315.55 g/mol.

Structurally, 5-Bromo-1-(3-chloro-4-methylphenyl)-1H-pyrazole-4-carboxylic acid (C11H8BrClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 315.55 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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