3,4-Diphenyl-1H-pyrazole-5-carboxylic acid CAS 32258-63-2

Purity 97%+In StockPharmaceutical Standards
CAS No.32258-63-2
Molecular FormulaC16H12N2O2
Molecular Weight264.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Diphenyl-1H-pyrazole-5-carboxylic acid CAS 32258-63-2 chemical structure

Description

The occurrence of 3,4-Diphenyl-1H-pyrazole-5-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3,4-Diphenyl-1H-pyrazole-5-carboxylic acid (CAS 32258-63-2) is a high-purity analytical reference standard with the molecular formula C16H12N2O2 and a molecular weight of 264.28 g/mol.

Structurally, 3,4-Diphenyl-1H-pyrazole-5-carboxylic acid (C16H12N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 264.28 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 3,4-Diphenyl-1H-pyrazole-5-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.

Physical & Chemical Properties

Molecular FormulaC16H12N2O2
Molecular Weight264.28 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1966
Nitrogen Atoms2

Related Diphenyl Standards

Recommended Standards

Why CATO?