Ammonium hydrogen 4-(3-(4-(dimethylamino)phenyl)allylidene)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate CAS 94266-11-2

Purity 97%+In StockPharmaceutical Standards
CAS No.94266-11-2
Molecular FormulaC21H18N3O6S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ammonium hydrogen 4-(3-(4-(dimethylamino)phenyl)allylidene)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate CAS 94266-11-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 458.49 g/mol gives Ammonium hydrogen 4-(3-(4-(dimethylamino)phenyl)allylidene)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ammonium hydrogen 4-(3-(4-(dimethylamino)phenyl)allylidene)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate (CAS 94266-11-2) is a high-purity analytical reference standard with the molecular formula C21H18N3O6SH4N and a molecular weight of 458.49 g/mol.

Ammonium hydrogen 4-(3-(4-(dimethylamino)phenyl)allylidene)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate (C21H18N3O6SH4N) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), Ammonium hydrogen 4-(3-(4-(dimethylamino)phenyl)allylidene)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-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 FormulaC21H18N3O6S H4N
Molecular Weight458.49 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Nitrogen Atoms4
Sulfur Atoms1

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