Description

4-Hydroxydiphenylamine is a versatile aromatic amine compound that serves as a crucial intermediate in the synthesis of high-performance materials. Its bifunctional structure, featuring both phenolic and aniline moieties, makes it a valuable building block for antioxidants, dyes, and polymer stabilizers. This product is essential for manufacturers in the rubber, plastics, and specialty chemical industries seeking to enhance product durability and performance.

Application

• Antioxidant Intermediate: A key precursor in the production of polymer and rubber antioxidants, protecting materials from thermal and oxidative degradation.
• Dye and Pigment Synthesis: Used in the manufacture of various azo dyes and organic pigments for textiles, inks, and coatings.
• Pharmaceutical Intermediates: Serves as a building block in the synthesis of certain active pharmaceutical ingredients (APIs) and fine chemicals.
• Lubricant and Fuel Additives: Employed in formulating additives that prevent oxidation and sludge formation in industrial lubricants and fuels.
• Photographic Chemicals: Acts as a component in certain developers and other specialty chemicals for photographic applications.
• Research & Development: Utilized in academic and industrial R&D laboratories for organic synthesis and material science studies.

Basic Information

Product Name	4-Hydroxydiphenylamine
CAS No.	122-37-2
Molecular Formula	C12H11NO
Molecular Weight	185.22 g/mol
Synonyms	4-Aminodiphenyl ether; N-Phenyl-4-aminophenol; p-Hydroxydiphenylamine; 4-(Phenylamino)phenol; 4-Anilinophenol; N-(4-Hydroxyphenyl)aniline; 1-Hydroxy-4-(phenylamino)benzene; 4-Hydroxy-N-phenylaniline
EINECS	204-539-4

Quality Control

Our 4-Hydroxydiphenylamine is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment aligns with ISO standards and relevant industrial specifications to meet the demanding requirements of our global B2B clientele.

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 heat, open flames, and incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, containers should be kept in the original packaging or amber glass until use.

Specification

Item	Specification
Appearance	White to light tan crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	70 - 74 °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.