Description

2,2'-(Carbonyldiimino)Bis[5-Aminobenzenesulphonic] Acid is a specialized aromatic sulfonic acid derivative featuring a central urea linkage, making it a valuable intermediate for synthesizing complex organic molecules. Its bifunctional structure, containing both amino and sulfonic acid groups, provides unique reactivity and solubility properties critical for advanced chemical manufacturing. This compound is essential for researchers and industrial chemists in the pharmaceutical, dye, and specialty chemical sectors seeking to develop novel active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds requiring enhanced solubility or specific ionic characteristics.
• Dye and Pigment Manufacturing: Serves as a precursor for the production of azo dyes and other colorants, where its sulfonic acid groups improve water solubility and dye fastness.
• Chemical Research & Development: Used as a versatile reagent in organic synthesis for creating urea-linked compounds, polymers, and ligands for metal complexation.
• Specialty Polymer Production: Acts as a monomer or cross-linking agent in the synthesis of polyelectrolytes, ion-exchange resins, and other functional polymers.
• Analytical Chemistry: Can be employed as a derivatization agent or a standard in chromatographic analysis due to its distinct UV/Vis absorption properties.

Basic Information

Product Name	2,2'-(Carbonyldiimino)Bis[5-Aminobenzenesulphonic] Acid
CAS No.	33719-44-7
Molecular Formula	C13H14N4O7S2
Molecular Weight	402.40 g/mol
Synonyms	4,4'-Diaminobenzophenone-2,2'-disulfonic Acid; 4,4'-Diaminobenzophenone-2,2'-disulphonic Acid; 2,2'-Carbonyldiimino-bis(5-aminobenzenesulfonic acid); 5,5'-Carbonylbis(imino-2,1-phenylene)disulfamic Acid; 4,4'-Diamino-2,2'-disulfobenzophenone; Benzophenone-2,2'-disulfonic acid, 4,4'-diamino-
EINECS	Contact for details

Quality Control

Our 2,2'-(Carbonyldiimino)Bis[5-Aminobenzenesulphonic] Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material meets the high standards required for research and industrial synthesis.

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. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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