Description

3,3'-Dihydroxydiphenylamine is a high-purity aromatic amine derivative characterized by its two phenolic hydroxyl groups. This compound serves as a versatile and critical chemical intermediate and building block in advanced organic synthesis. It is primarily utilized by manufacturers in the pharmaceutical, agrochemical, and polymer industries for the development of active ingredients, dyes, and specialty resins.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex drug molecules, particularly those requiring a diphenylamine core structure.
• Agrochemical Synthesis: Building block for manufacturing herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Modifier: Used in the production of epoxy curing agents, polyurethane catalysts, and high-performance polymers to enhance thermal and chemical resistance.
• Dye & Pigment Manufacturing: Intermediate for creating oxidation dyes, hair dyes, and specialized organic pigments.
• Antioxidant & Stabilizer Precursor: Serves as a starting material for synthesizing antioxidants used in rubber, plastics, and lubricants.
• Research & Development: Valuable reagent in academic and industrial R&D for exploring new organic reactions and material science applications.

Basic Information

Product Name	3,3'-Dihydroxydiphenylamine
CAS No.	65461-91-8
Molecular Formula	C₁₂H₁₁NO₂
Molecular Weight	201.22 g/mol
Synonyms	3,3'-Dihydroxybenzidine; N-Phenyl-3-aminophenol; 3-Amino-3'-hydroxydiphenyl ether; Bis(3-hydroxyphenyl)amine; 3,3'-Dihydroxydiphenyl amine; 3-(3-Hydroxyphenylamino)phenol; 3,3'-Oxydianiline (common misnomer, verify structure); 3,3'-Diaminodiphenyl ether dihydrochloride (related salt form)
EINECS	Contact for details

Quality Control

Our 3,3'-Dihydroxydiphenylamine is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications. A detailed Certificate of Analysis (COA) documenting purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, open flames, and 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	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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