Description

4-Aminophenol is a vital organic intermediate with a white to slightly yellow crystalline appearance. Its primary value lies in its role as a key building block for the synthesis of numerous pharmaceuticals and fine chemicals. This compound is essential for manufacturers in the pharmaceutical, dye, and photographic industries, where consistent high purity and reliable supply are critical for production.

Application

• Pharmaceutical Synthesis: A crucial precursor in the manufacture of paracetamol (acetaminophen) and other analgesic and antipyretic drugs.
• Dye and Pigment Production: Used as an intermediate in the synthesis of various azo dyes and sulfur dyes for textiles, leather, and hair colorants.
• Photographic Developer: Serves as a developing agent in black-and-white photographic processing.
• Rubber and Polymer Industry: Acts as an antioxidant and antiozonant agent to prevent degradation of rubber products.
• Chemical Research & Synthesis: Employed as a versatile reagent in organic synthesis for creating more complex molecular structures.
• Corrosion Inhibitor: Used in formulations to protect metals from oxidative damage.

Basic Information

Product Name	4-Aminophenol
CAS No.	123-30-8
Molecular Formula	C6H7NO
Molecular Weight	109.13 g/mol
Synonyms	p-Aminophenol; 4-Hydroxyaniline; Paraminophenol; PAP; 1-Amino-4-hydroxybenzene; UN 2512; Azol; Fourrine 84; Ursol P; Fouramine P; Rodol 44; Developer P
EINECS	204-616-2

Quality Control

Our 4-Aminophenol is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. We offer grades suitable for industrial and pharmaceutical applications, with testing protocols that may include HPLC, titration, and loss on drying. A Certificate of Analysis (COA) is provided with each shipment, detailing key specifications and confirming compliance with agreed parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong oxidizing agents. Recommended storage temperature is 15-25°C. Due to its property of being easily oxidized, prolonged exposure to air should be minimized.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	186 - 190 °C
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.