Description

1,8-Naphthalic Acid CAS NO 518-05-8 is a high-purity organic compound belonging to the naphthalene dicarboxylic acid family, serving as a versatile and critical intermediate in advanced chemical synthesis. Its unique molecular structure makes it an essential building block for creating complex molecules with specialized properties. This product is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for applications ranging from active pharmaceutical ingredient (API) development to the synthesis of advanced materials and dyes.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of naphthalimide derivatives, which are investigated for their anticancer, anti-inflammatory, and antimicrobial properties.
• Agrochemical Synthesis: Used in the production of certain herbicides and plant growth regulators, leveraging its aromatic structure for effective bioactive compounds.
• Dye and Pigment Manufacturing: Serves as a starting material for the synthesis of high-performance organic pigments and fluorescent dyes.
• Polymer and Material Science: Acts as a monomer or modifying agent in the production of polyimides, polyesters, and other high-temperature resistant polymers.
• Organic Synthesis Building Block: Employed in research and development for creating complex organic molecules, including ligands for catalysis and molecular sensors.
• Analytical Chemistry: Can be used as a standard or reagent in chromatographic analysis and other laboratory procedures.

Basic Information

Product Name	1,8-Naphthalic Acid
CAS No.	518-05-8
Molecular Formula	C₁₂H₈O₄
Molecular Weight	216.19 g/mol
Synonyms	1,8-Naphthalenedicarboxylic Acid; Naphthalene-1,8-dicarboxylic Acid; Peri-Naphthalenedicarboxylic Acid; 1,8-Naphthalic Anhydride (precursor); Peri Acid (contextual); 1,8-NDA; Acenaphthene-5,6-dicarboxylic Acid (derivative context)
EINECS	208-244-2

Quality Control

Our 1,8-Naphthalic Acid is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation, to meet the stringent requirements of our global B2B clientele. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to guarantee transparency and support your quality assurance protocols.

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 quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white 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)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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