Description

4-Hydroxy-2-Naphthoic Acid is a versatile organic compound and a key naphthalene derivative. It serves as a crucial intermediate in the synthesis of pharmaceuticals, dyes, and advanced organic materials. This product is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking a reliable, high-purity building block.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other active pharmaceutical ingredients (APIs).
• Dye and Pigment Manufacturing: Used in the production of azo dyes, lake pigments, and other colorants for textiles and plastics.
• Agrochemical Synthesis: Serves as a building block for certain herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Materials: An important intermediate in the manufacture of advanced organic electronic materials.
• Chemical Research & Development: Employed as a standard or starting material in organic synthesis and catalysis studies.
• Complexing Agent: Can be used in the formulation of metal chelators and analytical reagents.

Basic Information

Product Name	4-Hydroxy-2-Naphthoic Acid
CAS No.	1573-91-7
Molecular Formula	C11H8O3
Molecular Weight	188.18 g/mol
Synonyms	2-Naphthoic acid, 4-hydroxy-; 4-Hydroxy-2-naphthalenecarboxylic acid; 4-Hydroxynaphthalene-2-carboxylic acid; 2-Carboxy-4-hydroxynaphthalene; 4-Hydroxy-β-naphthoic acid; 4-HNA; β-Hydroxynaphthoic acid
EINECS	216-379-9

Quality Control

Our 4-Hydroxy-2-Naphthoic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for industrial and research applications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request.

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 strong oxidizing agents, strong bases, and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	248°C - 252°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.