Ethyl 5-((2-aminophenyl)amino)-1-methyl-1H-pyrazole-4-carboxylate CAS 749226-94-6

Purity 97%+In StockPharmaceutical Standards
CAS No.749226-94-6
Molecular FormulaC13H16N4O2
Molecular Weight260.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-((2-aminophenyl)amino)-1-methyl-1H-pyrazole-4-carboxylate CAS 749226-94-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 260.29 g/mol gives Ethyl 5-((2-aminophenyl)amino)-1-methyl-1H-pyrazole-4-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ethyl 5-((2-aminophenyl)amino)-1-methyl-1H-pyrazole-4-carboxylate (CAS 749226-94-6), molecular formula C13H16N4O2 and molecular weight 260.29 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C13H16N4O2, Ethyl 5-((2-aminophenyl)amino)-1-methyl-1H-pyrazole-4-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Ethyl 5-((2-aminophenyl)amino)-1-methyl-1H-pyrazole-4-carboxylate 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 FormulaC13H16N4O2
Molecular Weight260.29 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.)1986
Nitrogen Atoms4

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