1-Methyl-3-phenyl-1H-pyrazole-5-carboxylic Acid CAS 10250-64-3

Purity 97%+In StockPharmaceutical Standards
CAS No.10250-64-3
Molecular FormulaC11H10N2O2
Molecular Weight202.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Methyl-3-phenyl-1H-pyrazole-5-carboxylic Acid CAS 10250-64-3 chemical structure

Description

The occurrence of 1-Methyl-3-phenyl-1H-pyrazole-5-carboxylic Acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 1-Methyl-3-phenyl-1H-pyrazole-5-carboxylic Acid (CAS 10250-64-3), a certified reference material (molecular formula C11H10N2O2, MW 202.21 g/mol) for analytical method development and quality control.

Structurally, 1-Methyl-3-phenyl-1H-pyrazole-5-carboxylic Acid (C11H10N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 202.21 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.

As a certified reference material (CRM), 1-Methyl-3-phenyl-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 FormulaC11H10N2O2
Molecular Weight202.21 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Nitrogen Atoms2

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