Description

4-Amino-1-Naphthol is a versatile aromatic amine derivative of naphthalene, serving as a crucial intermediate in the synthesis of complex organic molecules. Its bifunctional nature, containing both an amino and a hydroxyl group, makes it a valuable building block for creating dyes, pigments, and pharmaceutical compounds. This high-purity intermediate is essential for manufacturers in the agrochemical, dye, and specialty chemical industries seeking reliable synthesis pathways.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes, naphthol AS series pigments, and other colorants for textiles, inks, and plastics.
• Pharmaceutical Synthesis: Used as a building block in the production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Manufacturing: Employed in the synthesis of herbicides, pesticides, and plant growth regulators.
• Photographic Chemical: Acts as a developing agent or a component in photographic developers and toners.
• Polymer Additive: Can be used in the production of polymers and resins as a modifier or stabilizer.
• Research & Development: Serves as a standard or reagent in organic chemistry research and analytical laboratories.

Basic Information

Product Name	4-Amino-1-Naphthol
CAS No.	2834-90-4
Molecular Formula	C10H9NO
Molecular Weight	159.19 g/mol
Synonyms	1-Naphthol-4-amine; 4-Amino-1-naphthalenol; 4-Hydroxy-1-naphthylamine; 1-Amino-4-hydroxynaphthalene; 4-Amino-α-naphthol; 4-Hydroxy-1-naphthylamine; C.I. 76540; Developer AN
EINECS	220-603-6

Quality Control

Our 4-Amino-1-Naphthol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications 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, well-ventilated area at room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light brown to grayish powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	178°C - 185°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.