Description

3,3'-Diaminobenzidine Tetrahydrochloride Dihydrate is a high-purity, tetrahydrochloride salt form of the important aromatic diamine, 3,3'-diaminobenzidine. This compound is a critical chromogenic substrate and precursor in the synthesis of polymers and advanced materials. It is essential for research and industrial applications in life sciences, polymer chemistry, and materials engineering, where precise and reliable chemical performance is required.

Application

• Primary Chromogenic Substrate: Widely used in immunohistochemistry (IHC) and enzyme-linked immunosorbent assays (ELISAs) for the detection of horseradish peroxidase (HRP), producing an insoluble brown precipitate.
• Polymer Synthesis: Serves as a key monomer for the production of polybenzimidazoles (PBIs), high-performance polymers known for exceptional thermal and chemical stability.
• Electrochemical Sensor Development: Used in the fabrication of modified electrodes and biosensors due to its electroactive properties.
• Organic Synthesis Intermediate: Acts as a versatile building block for synthesizing dyes, pigments, and complex organic molecules.
• Cross-linking Agent: Employed in the preparation of cross-linked polymers and hydrogels for specialized material applications.
• Research & Development: Utilized in academic and industrial R&D for developing new diagnostic reagents and advanced functional materials.

Basic Information

Product Name	3,3'-Diaminobenzidine Tetrahydrochloride Dihydrate
CAS No.	167684-17-5
Molecular Formula	C12H18Cl4N4O2
Molecular Weight	396.11 g/mol
Synonyms	3,3',4,4'-Biphenyltetramine Tetrahydrochloride Dihydrate; DAB Tetrahydrochloride; 3,3'-Diaminobenzidine 4HCl; Tetrahydrochloride Salt of 3,3',4,4'-Tetraminobiphenyl; Benzidine, 3,3'-diamino-, tetrahydrochloride, dihydrate; DAB-4HCl; [1,1'-Biphenyl]-3,3',4,4'-tetramine tetrahydrochloride dihydrate
EINECS	Contact for details

Quality Control

Our 3,3'-Diaminobenzidine Tetrahydrochloride Dihydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive applications like diagnostic assays and polymer synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This product is hygroscopic (moisture-sensitive) and light-sensitive (store away from light). Keep the container tightly sealed in a desiccated environment to prevent moisture absorption and decomposition.

Specification

Item	Specification
Appearance	Light brown to tan crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	8.0 - 11.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, methanol

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