4-(4-Aminophenylsulfonamido)phenylacetic Acid CAS 857558-63-5

Purity 97%+In StockPharmaceutical Standards
CAS No.857558-63-5
Molecular FormulaC14H14N2O4S
Molecular Weight306.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4-Aminophenylsulfonamido)phenylacetic Acid CAS 857558-63-5 chemical structure

Description

4-(4-Aminophenylsulfonamido)phenylacetic Acid (CAS 857558-63-5) is a high-purity analytical reference standard with the molecular formula C14H14N2O4S and a molecular weight of 306.34 g/mol.

4-(4-Aminophenylsulfonamido)phenylacetic Acid (C14H14N2O4S) contains a nitrogen-containing heterocyclic scaffold, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

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 FormulaC14H14N2O4S
Molecular Weight306.34 g/mol
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.)1987
Nitrogen Atoms2
Sulfur Atoms1

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