Description

1,4-Dibromonaphthalene CAS NO 83-53-4 is a high-purity halogenated naphthalene derivative, serving as a critical organic intermediate and building block in advanced chemical synthesis. Its value lies in its two bromine atoms positioned para to each other on the naphthalene ring, which provide reactive sites for cross-coupling reactions and functional group transformations. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries, particularly for developing active ingredients, liquid crystals, and organic electronic materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs) via Suzuki-Miyaura and other palladium-catalyzed cross-coupling reactions.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and pesticides that require specific brominated aromatic structures.
• Organic Light-Emitting Diodes (OLEDs): Used in the research and development of electron-transport materials and host materials for OLED displays and lighting.
• Liquid Crystal Compounds: Serves as a rigid core component in the synthesis of nematic and smectic liquid crystals for display applications.
• Polymer & Material Science: Monomer for creating specialized polymers, including high-performance engineering plastics and flame-retardant materials.
• Chemical Research & Development: Versatile reagent in academic and industrial R&D labs for exploring new organic reactions and creating novel aromatic compounds.
• Dye & Pigment Intermediate: Used in the synthesis of specific brominated dyes and organic pigments.

Basic Information

Product Name	1,4-Dibromonaphthalene
CAS No.	83-53-4
Molecular Formula	C10H6Br2
Molecular Weight	285.96 g/mol
Synonyms	1,4-Dibromonaphthalene; Naphthalene, 1,4-dibromo-; p-Dibromonaphthalene; 1,4-Dibromonaphthalin; NSC 404087; AI3-15301; CCRIS 6021; HSDB 8285; UNII-2R6Q8QZ5PJ; 1,4-DBN
EINECS	201-485-9

Quality Control

Our 1,4-Dibromonaphthalene is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, documenting all critical parameters. Our quality commitment ensures the material meets the stringent requirements for research and cGMP-grade synthesis applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Melting Point	81 - 85 °C
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%
Heavy Metals (as Pb)	≤20 ppm

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