Description

4-Amino-1-Naphthol Hydrochloride is an important aromatic amine derivative used as a versatile chemical intermediate. Its value lies in its bifunctional structure, containing both an amino group and a phenolic hydroxyl group, which makes it a key building block for the synthesis of more complex molecules. This compound is primarily needed by manufacturers in the pharmaceutical, dye, and agrochemical industries for research and production purposes.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly in the development of dyes for diagnostic imaging and certain therapeutic agents.
• Dye and Pigment Manufacturing: Used in the production of azo dyes, naphthol dyes, and other complex colorants for textiles, inks, and plastics.
• Agrochemical Synthesis: Acts as a building block for creating certain herbicides, fungicides, and other crop protection chemicals.
• Chemical Research & Development: Employed in organic synthesis laboratories for coupling reactions and as a model compound in methodological studies.
• Photographic Chemical: Historically used in certain photographic developers and as a component in color film processing.
• Polymer Additive: Can function as an antioxidant or stabilizer precursor in polymer formulations due to its phenolic structure.

Basic Information

Product Name	4-Amino-1-Naphthol Hydrochloride
CAS No.	5959-56-8
Molecular Formula	C10H9NO·HCl
Molecular Weight	195.65 g/mol
Synonyms	1-Naphthol-4-amine hydrochloride; 4-Amino-1-naphthalenol hydrochloride; 1-Hydroxy-4-aminonaphthalene hydrochloride; 4-Amino-α-naphthol hydrochloride; 4-Amino-1-hydroxynaphthalene hydrochloride; C.I. 76550; Developer C
EINECS	227-753-8

Quality Control

Our 4-Amino-1-Naphthol Hydrochloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets defined specifications for identity, purity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing results for assay, related substances, and other critical parameters is provided with every shipment to guarantee traceability and consistency for your B2B applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and easily oxidized; therefore, containers must be kept tightly sealed after opening to minimize exposure to air and moisture. For long-term storage, consider using an inert atmosphere.

Specification

Item	Specification
Appearance	Off-white to gray or brownish powder/crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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