Description

p-Phenylaminobenzenediazoniumchloride CAS NO 101-56-4 is a diazonium salt derivative of benzidine, serving as a critical intermediate in the synthesis of azo dyes and pigments. Its value lies in its ability to form stable, deeply colored compounds upon coupling with various aromatic amines and phenols. This chemical is essential for manufacturers in the dyestuff, printing ink, and specialty chemical industries seeking to produce high-performance colorants.

Application

• Primary Intermediate for Azo Dyes & Pigments: Coupling agent for producing yellow, orange, and red dyes used in textiles, leather, and paper.
• Photographic Chemicals: Used in the preparation of light-sensitive materials and certain photographic developers.
• Chemical Synthesis Reagent: Acts as a diazotization agent in organic synthesis for introducing aryl groups.
• Research & Development: Key starting material in academic and industrial labs for developing novel chromophores and functional materials.
• Specialty Inks: Component in the formulation of high-quality printing inks requiring specific color fastness and intensity.

Basic Information

Product Name	p-Phenylaminobenzenediazoniumchloride
CAS No.	101-56-4
Molecular Formula	C12H11ClN4
Molecular Weight	246.70 g/mol
Synonyms	4-(Phenylamino)benzenediazonium chloride; Fast Scarlet G Base; C.I. Azoic Diazo Component 13; p-Aminodiphenylamine Diazonium Chloride; Benzenediazonium, 4-(phenylamino)-, chloride; Azoic Diazo Component 13; 1-Diazo-4-(phenylamino)benzene chloride
EINECS	202-951-5

Quality Control

Our p-Phenylaminobenzenediazoniumchloride is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including HPLC, IR spectroscopy, and titration. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each 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 place at room temperature (15-25°C). Due to its hygroscopic and light-sensitive nature, the container must be kept tightly sealed after each use to minimize exposure to moisture and light, which can degrade the product.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility Test	Clear solution in specified solvent

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