Description

2,2'-Dichlorobenzidine is an important aromatic amine derivative primarily used as a key chemical intermediate in the synthesis of high-performance pigments and dyes. Its value lies in providing the structural backbone for creating vivid, stable azo pigments essential for industrial coloration. This compound is critical for manufacturers in the pigment and dye, plastics, and specialty chemical industries seeking reliable intermediates for their production processes.

Application

• Primary Intermediate for Azo Pigments: Serves as a crucial diazo component in the manufacture of high-performance organic pigments, particularly yellows, oranges, and reds.
• Dye Manufacturing: Used in the synthesis of specific direct and solvent dyes for textiles and other materials.
• Plastics and Polymers Coloring: Pigments derived from 2,2'-Dichlorobenzidine are used to color engineering plastics, synthetic fibers, and masterbatches.
• Coatings and Inks: Imparts color and stability to industrial paints, automotive coatings, and printing inks.
• Research & Development: Employed in chemical research as a building block for novel organic compounds and materials science applications.
• Rubber and Elastomers: Used in the coloration of various rubber products.

Basic Information

Product Name	2,2'-Dichlorobenzidine
CAS No.	84-68-4
Molecular Formula	C12H10Cl2N2
Molecular Weight	253.13 g/mol
Synonyms	2,2'-Dichloro-[1,1'-biphenyl]-4,4'-diamine; DCB; o,o'-Dichlorobenzidine; 3,3'-Dichlorobenzidine; 4,4'-Diamino-3,3'-dichlorobiphenyl; (1,1'-Biphenyl)-4,4'-diamine, 2,2'-dichloro-; Fast Corinth Base B
EINECS	201-542-4

Quality Control

Our 2,2'-Dichlorobenzidine is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including assay and impurity profile analysis via techniques like HPLC and GC. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its nature as an aromatic amine, appropriate industrial hygiene practices should be observed during handling.

Specification

Item	Specification
Appearance	Light gray to brown crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	132°C - 136°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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