1-Methyl-5-{methyl[(5-phenyl-3-isoxazolyl)carbonyl]amino}-4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid CAS 1353506-59-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1353506-59-8
Molecular FormulaC20H20N4O4
Molecular Weight380.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Methyl-5-{methyl[(5-phenyl-3-isoxazolyl)carbonyl]amino}-4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid CAS 1353506-59-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 380.40 g/mol gives 1-Methyl-5-{methyl[(5-phenyl-3-isoxazolyl)carbonyl]amino}-4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 1-Methyl-5-{methyl[(5-phenyl-3-isoxazolyl)carbonyl]amino}-4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid (CAS 1353506-59-8), a certified reference material (molecular formula C20H20N4O4, MW 380.40 g/mol) for analytical method development and quality control.

The molecular framework of 1-Methyl-5-{methyl[(5-phenyl-3-isoxazolyl)carbonyl]amino}-4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid (C20H20N4O4) 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. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC20H20N4O4
Molecular Weight380.40 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms4

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