4-Bromo-1,3-dimethyl-1H-pyrazole-5-carbonitrile CAS 1454852-95-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1454852-95-9
Molecular FormulaC6H6BrN3
Molecular Weight200.04 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Bromo-1,3-dimethyl-1H-pyrazole-5-carbonitrile CAS 1454852-95-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromo-1,3-dimethyl-1H-pyrazole-5-carbonitrile.

4-Bromo-1,3-dimethyl-1H-pyrazole-5-carbonitrile (CAS 1454852-95-9) is a high-purity analytical reference standard with the molecular formula C6H6BrN3 and a molecular weight of 200.04 g/mol.

4-Bromo-1,3-dimethyl-1H-pyrazole-5-carbonitrile (C6H6BrN3) contains a nitrile group, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

As a certified reference material (CRM), 4-Bromo-1,3-dimethyl-1H-pyrazole-5-carbonitrile 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

Molecular FormulaC6H6BrN3
Molecular Weight200.04 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Halogen ContentBr-containing
Nitrogen Atoms3

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