4-Nitro-3-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-5-carboxylic acid CAS 1258002-57-1

Purity 97%+In StockPharmaceutical Standards
CAS No.1258002-57-1
Molecular FormulaC6H4N6O4
Molecular Weight224.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Nitro-3-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-5-carboxylic acid CAS 1258002-57-1 chemical structure

Description

CATO supplies 4-Nitro-3-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-5-carboxylic acid (CAS 1258002-57-1), a certified reference material (molecular formula C6H4N6O4, MW 224.13 g/mol) for analytical method development and quality control.

Based on its molecular formula C6H4N6O4, 4-Nitro-3-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-5-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 224.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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-Nitro-3-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-5-carboxylic acid 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 FormulaC6H4N6O4
Molecular Weight224.13 g/mol
AppearancePale yellow to yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms6

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