Description

2,3-Diaminonaphthalene CAS NO 771-97-1 is a high-purity aromatic diamine compound, serving as a critical building block and analytical reagent in advanced chemical synthesis. Its primary commercial value lies in its dual amine functionality, which enables its use as a versatile precursor for heterocyclic compounds, dyes, and specialized polymers. This product is essential for industries including analytical chemistry, where it is used as a selective fluorogenic reagent for selenium determination, and for manufacturers of agrochemicals, pharmaceuticals, and high-performance materials.

Application

• Fluorogenic Reagent for Selenium Analysis: Widely used as a highly selective derivatization agent for the sensitive spectrofluorometric determination of selenium(IV) in environmental, biological, and food samples.
• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of naphthalimide-based drugs, heterocyclic compounds, and other active pharmaceutical ingredients (APIs).
• Dye and Pigment Manufacturing: Acts as a crucial intermediate for producing azo dyes, naphthol-based pigments, and other colorants for textiles and plastics.
• Polymer and Resin Production: Utilized as a monomer or cross-linking agent in the synthesis of polyimides, epoxy hardeners, and other high-temperature polymers.
• Agrochemical Synthesis: Employed in the manufacture of herbicides, fungicides, and other crop protection agents that require a naphthalene backbone.
• Research and Development: Used in organic synthesis laboratories for constructing complex molecular architectures and in material science research.
• Corrosion Inhibitor Formulation: Incorporated into formulations designed to protect metals in industrial systems.
• Chelating Agent: Functions as a ligand for metal ions in catalytic systems and separation technologies.

Basic Information

Product Name	2,3-Diaminonaphthalene
CAS No.	771-97-1
Molecular Formula	C10H10N2
Molecular Weight	158.20 g/mol
Synonyms	2,3-Naphthalenediamine; 1,2-Diaminonaphthalene; DAN; 2,3-Diaminonaphthalin; 2,3-Naphthylenediamine; Naphthalene-2,3-diamine; 2,3-DAN; 2,3-Diamino-naphthalene
EINECS	212-247-3

Quality Control

Our 2,3-Diaminonaphthalene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for sensitive applications like analytical reagents and pharmaceutical synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment. We adhere to cGMP principles where applicable to guarantee batch-to-batch consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	190 - 195 °C
Loss on Drying	≤ 0.5 %
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.