4-Nitro-5-(4-nitrophenyl)-1H-pyrazole-3-carboxylic acid CAS 109892-71-9

Purity 97%+In StockPharmaceutical Standards
CAS No.109892-71-9
Molecular FormulaC10H6N4O6
Molecular Weight278.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Nitro-5-(4-nitrophenyl)-1H-pyrazole-3-carboxylic acid CAS 109892-71-9 chemical structure

Description

CATO manufactures 4-Nitro-5-(4-nitrophenyl)-1H-pyrazole-3-carboxylic acid 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.

4-Nitro-5-(4-nitrophenyl)-1H-pyrazole-3-carboxylic acid (CAS 109892-71-9) is a high-purity analytical reference standard with the molecular formula C10H6N4O6 and a molecular weight of 278.18 g/mol.

Structurally, 4-Nitro-5-(4-nitrophenyl)-1H-pyrazole-3-carboxylic acid (C10H6N4O6) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 278.18 g/mol, it falls into the medium-molecular-weight range. 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.

Physical & Chemical Properties

Molecular FormulaC10H6N4O6
Molecular Weight278.18 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
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Nitrogen Atoms4

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