Description

1,3-Dihydroxy-2-naphthoic acid is a versatile naphthalene derivative that serves as a critical intermediate in the synthesis of complex organic molecules. Its bifunctional structure, featuring both phenolic hydroxyl and carboxylic acid groups, makes it a valuable building block for creating dyes, pigments, and advanced pharmaceutical compounds. This high-purity intermediate is essential for manufacturers in the fine chemical, pharmaceutical, and specialty dye industries seeking reliable, high-quality raw materials for their synthesis processes.

Application

• Pharmaceutical Intermediate: A key starting material or intermediate in the synthesis of active pharmaceutical ingredients (APIs), particularly those with naphthalene-based structures.
• Dye and Pigment Manufacturing: Used in the production of high-performance azo dyes, lake pigments, and other colorants for textiles, inks, and plastics.
• Organic Synthesis Building Block: Employed in coupling reactions and as a precursor for ligands in catalytic systems or for creating more complex polycyclic structures.
• Research & Development: Serves as a standard or reagent in chemical research for developing new organic compounds and materials.
• Analytical Chemistry: Can be used as a derivatization agent or a standard in chromatographic analysis for method development.

Basic Information

Product Name	1,3-Dihydroxy-2-naphthoic Acid
CAS No.	3147-58-8
Molecular Formula	C11H8O4
Molecular Weight	204.18 g/mol
Synonyms	1,3-Dihydroxy-2-naphthalenecarboxylic acid; 2-Naphthoic acid, 1,3-dihydroxy-; 3-Hydroxy-1-naphthoic acid; 1,3-Dihydroxynaphthalene-2-carboxylic acid; DHNA; 1,3-DHNA; 1,3-Naphthalenediol-2-carboxylic acid
EINECS	221-567-7

Quality Control

Our 1,3-Dihydroxy-2-naphthoic acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR for identification, and loss on drying, to ensure it meets exacting standards. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive and easily oxidized; prolonged exposure to light, air, or elevated temperatures should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.1 %
Heavy Metals	≤ 20 ppm

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