5-(2-tert-Butoxycarbonylamino-ethyl)-1-phenyl-1H-pyrazole-4-carboxylic acid methyl ester CAS 1188338-55-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1188338-55-7
Molecular FormulaC18H23N3O4
Molecular Weight345.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(2-tert-Butoxycarbonylamino-ethyl)-1-phenyl-1H-pyrazole-4-carboxylic acid methyl ester CAS 1188338-55-7 chemical structure

Description

As a certified reference material (CRM), 5-(2-tert-Butoxycarbonylamino-ethyl)-1-phenyl-1H-pyrazole-4-carboxylic acid methyl ester 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.

CATO supplies 5-(2-tert-Butoxycarbonylamino-ethyl)-1-phenyl-1H-pyrazole-4-carboxylic acid methyl ester (CAS 1188338-55-7), a certified reference material (molecular formula C18H23N3O4, MW 345.39 g/mol) for analytical method development and quality control.

The molecular framework of 5-(2-tert-Butoxycarbonylamino-ethyl)-1-phenyl-1H-pyrazole-4-carboxylic acid methyl ester (C18H23N3O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

Physical & Chemical Properties

Molecular FormulaC18H23N3O4
Molecular Weight345.39 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms3

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