Description

2,2'-Dichlorobenzidine Dihydrochloride is an important aromatic amine salt used primarily as a key chemical intermediate. Its value lies in its role as a precursor in the synthesis of high-performance pigments and dyes, where its molecular structure provides critical color and stability properties. This compound is essential for manufacturers in the pigment, dyestuff, and specialty chemical industries seeking reliable intermediates for their production processes.

Application

• Pigment Manufacturing: A crucial intermediate in the production of high-performance organic pigments, particularly diarylide yellows and oranges.
• Dyestuff Synthesis: Serves as a key building block for azo dyes and other complex colorants used in textiles and plastics.
• Chemical Research: Used in academic and industrial R&D for studying aromatic amine chemistry and developing novel polymeric materials.
• Specialty Chemical Production: Acts as a precursor for other benzidine-based derivatives with specific functional properties.

Basic Information

Product Name	2,2'-Dichlorobenzidine Dihydrochloride
CAS No.	5742-07-4
Molecular Formula	C12H10Cl2N2·2HCl
Molecular Weight	326.04 g/mol
Synonyms	3,3'-Dichlorobenzidine Dihydrochloride; DCB Dihydrochloride; o,o'-Dichlorobenzidine Dihydrochloride; 2,2'-Dichloro-[1,1'-biphenyl]-4,4'-diamine Dihydrochloride; Benzidine, 3,3'-dichloro-, dihydrochloride; Fast Dark Blue Base R Salt; C.I. Azoic Diazo Component 48
EINECS	227-271-5

Quality Control

Our 2,2'-Dichlorobenzidine Dihydrochloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance requirements.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light gray crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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