Description

3-Hydroxybenzidine is an important aromatic amine derivative and a key organic intermediate. This compound is valued for its role in synthesizing complex molecules, particularly in the production of dyes, pigments, and advanced materials. It is essential for manufacturers and R&D laboratories in the chemical synthesis, specialty chemicals, and material science sectors seeking reliable, high-purity intermediates.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes and complex organic pigments.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs) and other fine chemicals.
• Polymer and Resin Production: Used in the manufacture of specialized polymers and epoxy curing agents.
• Research & Development: A valuable reagent in organic chemistry research for coupling reactions and heterocyclic compound synthesis.
• Analytical Chemistry: Can be employed as a reagent or standard in specific analytical methods.
• Liquid Crystal and Electronic Material Precursor: Used in the development of advanced functional materials.

Basic Information

Product Name	3-Hydroxybenzidine
CAS No.	3366-54-9
Molecular Formula	C12H12N2O
Molecular Weight	200.24 g/mol
Synonyms	3,3'-Dihydroxybenzidine; 3,3'-Dihydroxy-[1,1'-biphenyl]-4,4'-diamine; 4,4'-Diamino-3,3'-dihydroxybiphenyl; o-Dianisidine (Note: o-Dianisidine is 3,3'-Dimethoxybenzidine, a related compound); Benzidine, 3,3'-dihydroxy-; [1,1'-Biphenyl]-4,4'-diamine, 3,3'-dihydroxy-
EINECS	222-157-8

Quality Control

Our 3-Hydroxybenzidine is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets exacting standards for industrial and research applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency.

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). Keep away from incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

Item	Specification
Appearance	Light brown to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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