Description

Sodium Diphenylamine-4-Sulfonate is an important organic intermediate and analytical reagent. This compound is valued for its role as a redox indicator and its utility in various synthesis pathways. It is primarily sought by manufacturers and laboratories in the pharmaceutical, dye, and analytical chemistry sectors for its specific functional properties.

Application

• Primary use as a redox indicator in titrimetric analysis, particularly in cerimetry.
• Key intermediate in the synthesis of dyes and pigments.
• Reagent in pharmaceutical research and development for specific synthetic routes.
• Component in electrochemical and analytical sensor applications.
• Used in research laboratories for studying oxidation-reduction processes.
• Potential use in the preparation of specialty chemicals and fine chemicals.

Basic Information

Product Name	Sodium Diphenylamine-4-Sulfonate
CAS No.	6152-67-6
Molecular Formula	C12H10NNaO3S
Molecular Weight	271.27 g/mol
Synonyms	Diphenylamine-4-sulfonic acid sodium salt; 4-(Phenylamino)benzenesulfonic acid sodium salt; Sodium 4-anilinobenzenesulfonate; Sodium N-phenylsulfanilate; DPAS; Ferroin indicator (component); Redox indicator DPAS; N-Phenylsulfanilic acid sodium salt
EINECS	228-179-8

Quality Control

Our Sodium Diphenylamine-4-Sulfonate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specific results for assay, impurities, and other critical parameters is provided with every shipment to guarantee it meets your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%
Solubility (in Water)	Clear, colorless solution

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.