4-bromo-3,5-bis(difluoromethyl)-1h-pyraZole CAS 1046454-44-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1046454-44-7
Molecular FormulaC5H3BrF4N2
Molecular Weight246.99 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-bromo-3,5-bis(difluoromethyl)-1h-pyraZole CAS 1046454-44-7 chemical structure

Description

The occurrence of 4-bromo-3,5-bis(difluoromethyl)-1h-pyraZole is closely related to a nitrile group, fluorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-bromo-3,5-bis(difluoromethyl)-1h-pyraZole (CAS 1046454-44-7) is a high-purity analytical reference standard with the molecular formula C5H3BrF4N2 and a molecular weight of 246.99 g/mol.

Based on its molecular formula C5H3BrF4N2, 4-bromo-3,5-bis(difluoromethyl)-1h-pyraZole contains a nitrile group, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 246.99 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.

CATO manufactures 4-bromo-3,5-bis(difluoromethyl)-1h-pyraZole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC5H3BrF4N2
Molecular Weight246.99 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1988
Halogen ContentF/Br-containing
Nitrogen Atoms2

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