Description

Disodium 1-Phenyl-3-[[4-[(2-Pyridylamino)Sulphonyl]Phenyl]Amino]Propane-1,3-Disulphonate is a high-purity, water-soluble organic compound featuring a unique sulfonated aromatic structure. This compound is valued for its ability to act as a specialized intermediate and functional additive in advanced chemical synthesis and material science. It is primarily sought by manufacturers in the pharmaceutical, specialty dye, and advanced polymer industries for research and production applications.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring sulfonamide and pyridine functionalities.
• Specialty Dye & Pigment Synthesis: Serves as a key building block for creating water-soluble, high-color-strength azo dyes and pigments.
• Polymer Modification: Acts as a functional monomer or additive to introduce sulfonate groups into polymers, enhancing hydrophilicity and ionic character.
• Research Chemical: Employed in academic and industrial R&D for studying sulfonation reactions and developing new organic materials.
• Analytical Reagent: Potential use as a complexing agent or standard in specific analytical methodologies.
• Photographic Chemicals: Can be utilized in the formulation of certain light-sensitive layers and developing agents.

Basic Information

Product Name	Disodium 1-Phenyl-3-[[4-[(2-Pyridylamino)Sulphonyl]Phenyl]Amino]Propane-1,3-Disulphonate
CAS No.	53778-51-1
Molecular Formula	C20H19N3Na2O8S3
Molecular Weight	579.54 g/mol
Synonyms	Disodium 1-phenyl-3-({4-[(pyridin-2-ylamino)sulfonyl]phenyl}amino)propane-1,3-disulfonate; 1,3-Propanedisulfonic acid, 1-phenyl-3-[[4-[(2-pyridinylamino)sulfonyl]phenyl]amino]-, sodium salt (1:2); 53778-51-1; NSC 339063; Azo dye intermediate SR-01; Light yellow sulfonated pyridine derivative
EINECS	Contact for details

Quality Control

Our Disodium 1-Phenyl-3-[[4-[(2-Pyridylamino)Sulphonyl]Phenyl]Amino]Propane-1,3-Disulphonate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (HPLC), residual solvents, and related substances are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Light yellow to yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals	≤ 20 ppm
pH (5% solution)	6.0 - 8.0

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