Description

3-Amino-2-Naphthoic Acid is a versatile aromatic amine-carboxylic acid derivative, serving as a critical building block in advanced organic synthesis. Its bifunctional nature, featuring both an amino and a carboxylic acid group, makes it a valuable intermediate for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty dye industries, where it is used to develop active ingredients, functional pigments, and novel materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs), diagnostic agents, and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a core structure for creating azo dyes, pigments, and optical brighteners with specific colorfastness and stability properties.
• Ligand and Chelating Agent: The amino and carboxyl groups allow it to act as a ligand for metal ions in catalytic systems and analytical chemistry.
• Polymer and Material Science: Incorporated into polymers to impart specific functional groups, modifying thermal stability, solubility, or reactivity.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and novel chemical entities.

Basic Information

Product Name	3-Amino-2-Naphthoic Acid
CAS No.	5959-52-4
Molecular Formula	C11H9NO2
Molecular Weight	187.20 g/mol
Synonyms	2-Naphthoic acid, 3-amino-; 3-Amino-2-naphthalenecarboxylic acid; 2-Carboxy-3-naphthylamine; 3-Aminonaphthalene-2-carboxylic acid; β-Amino-β-naphthoic acid; 3-Amino-β-naphthoic acid; 3-Amino-naphthalene-2-carboxylic acid
EINECS	227-749-7

Quality Control

Our 3-Amino-2-Naphthoic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR for identification, and loss on drying for moisture content, to ensure it meets stringent specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We support compliance with major regulatory frameworks, including REACH.

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 product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Melting Point	215 - 220 °C
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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