Description

4-Aminonaphthalene-2-Carboxylic Acid is a high-purity aromatic amine derivative that serves as a critical building block in advanced organic synthesis. Its bifunctional nature, featuring both an amine and a carboxylic acid group, makes it a versatile intermediate for constructing complex molecular architectures. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty dye industries, where it is used to develop active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the development of advanced herbicides, pesticides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a core intermediate for producing azo dyes, pigments, and optical brighteners.
• Material Science Research: Building block for organic semiconductors, conductive polymers, and metal-organic frameworks (MOFs).
• Bioconjugation and Probe Development: Utilized in biochemistry for labeling proteins and creating fluorescent probes due to its reactive sites.
• Corrosion Inhibitor Formulation: Component in specialty chemical formulations designed to protect metals in industrial processes.

Basic Information

Product Name	4-Aminonaphthalene-2-Carboxylic Acid
CAS No.	5773-98-8
Molecular Formula	C11H9NO2
Molecular Weight	187.20 g/mol
Synonyms	2-Carboxy-4-naphthylamine; 4-Amino-2-naphthoic Acid; 4-Amino-2-naphthalenecarboxylic Acid; 2-Naphthylamine-4-carboxylic Acid; 4-Amino-2-naphthalene carboxylic acid; 4-Amino-2-naphthoic acid; 4-Amino-2-naphthylcarboxylic acid; 4-Aminonaphthalene-2-carboxylic acid
EINECS	227-303-5

Quality Control

Our 4-Aminonaphthalene-2-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

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 (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Sparingly soluble in water; soluble in alkaline solutions and polar organic solvents

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