4-Trifluoromethylpyrazole CAS 52222-73-8

Purity 97%+In StockPharmaceutical Standards
CAS No.52222-73-8
Molecular FormulaC4H3F3N2
Molecular Weight136.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Trifluoromethylpyrazole CAS 52222-73-8 chemical structure

Description

As a certified reference material (CRM), 4-Trifluoromethylpyrazole 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.

4-Trifluoromethylpyrazole (CAS 52222-73-8) is a high-purity analytical reference standard with the molecular formula C4H3F3N2 and a molecular weight of 136.08 g/mol.

Owing to a nitrile group, fluorine substitution, 4-Trifluoromethylpyrazole is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 136.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

Physical & Chemical Properties

Molecular FormulaC4H3F3N2
Molecular Weight136.08 g/mol
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.)1971
Halogen ContentF-containing
Nitrogen Atoms2

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