Description

4-[(4-Aminophenyl)Amino]Benzenediazonium Hydrogen Sulphate is a specialized diazonium salt intermediate of significant importance in synthetic organic chemistry. Its primary value lies in its ability to act as a versatile electrophile for the formation of azo bonds, enabling the synthesis of complex dyes, pigments, and functional polymers. This compound is essential for R&D and production chemists in the dye and pigment manufacturing, pharmaceutical intermediate synthesis, and advanced materials research sectors.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a key coupling agent in the synthesis of high-performance, color-fast azo dyes for textiles, inks, and plastics.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs) that incorporate azo or diazonium functional groups.
• Functional Polymer Synthesis: Employed in the creation of polymers with specific optical or electronic properties, such as those used in sensors or imaging agents.
• Research & Development: A valuable reagent in academic and industrial laboratories for exploring new carbon-nitrogen bond formation reactions and material science applications.
• Photographic Chemicals: Can be utilized in the synthesis of certain light-sensitive compounds used in specialized photographic processes.

Basic Information

Product Name	4-[(4-Aminophenyl)Amino]Benzenediazonium Hydrogen Sulphate
CAS No.	80997-88-2
Molecular Formula	C12H13N4O4S
Molecular Weight	309.32 g/mol
Synonyms	4-(4-Aminophenylamino)benzenediazonium hydrogen sulfate; 4-[(4-Aminophenyl)amino]benzenediazonium sulfate (1:1); 4-(p-Aminophenylamino)benzenediazonium bisulfate; Diazonium salt of 4-amino-4'-aminodiphenylamine; Fast Blue B Salt (related base); p-(p-Aminoanilino)benzenediazonium hydrogen sulphate; 1,4-Benzenediamine, N-(4-aminophenyl)-, diazotated, sulfate
EINECS	Contact for details

Quality Control

Our 4-[(4-Aminophenyl)Amino]Benzenediazonium Hydrogen Sulphate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity, consistent reactivity, and batch-to-batch reliability. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Solubility	Soluble in polar aprotic solvents (tested in DMF/DMSO)

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