3-Hydroxy-4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-N,N-dimethylnaphthalene-1-sulfonamide CAS 1211938-40-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1211938-40-7
Molecular FormulaC22H21N5O4S
Molecular Weight451.50 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Hydroxy-4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-N,N-dimethylnaphthalene-1-sulfonamide CAS 1211938-40-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 451.50 g/mol gives 3-Hydroxy-4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-N,N-dimethylnaphthalene-1-sulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 3-Hydroxy-4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-N,N-dimethylnaphthalene-1-sulfonamide (CAS 1211938-40-7), a certified reference material (molecular formula C22H21N5O4S, MW 451.50 g/mol) for analytical method development and quality control.

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 3-Hydroxy-4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-N,N-dimethylnaphthalene-1-sulfonamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 451.50 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC22H21N5O4S
Molecular Weight451.50 g/mol
Purity97%+
StorageStore in a cool place (≤25°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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms5
Sulfur Atoms1

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