(4E)-3-(4-Bromophenyl)-4-[2-(3-methylphenyl)hydrazin-1-ylidene]-4H-pyrazole CAS 338414-37-2

Description

The occurrence of (4E)-3-(4-Bromophenyl)-4-[2-(3-methylphenyl)hydrazin-1-ylidene]-4H-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(4E)-3-(4-Bromophenyl)-4-[2-(3-methylphenyl)hydrazin-1-ylidene]-4H-pyrazole (CAS 338414-37-2) is a high-purity analytical reference standard with the molecular formula C16H13BrN4 and a molecular weight of 341.21 g/mol.

Structurally, (4E)-3-(4-Bromophenyl)-4-[2-(3-methylphenyl)hydrazin-1-ylidene]-4H-pyrazole (C16H13BrN4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 341.21 g/mol, it falls into the moderately-high-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.

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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