Description

2-Phenylnaphthalene is a polycyclic aromatic hydrocarbon (PAH) featuring a naphthalene core substituted with a phenyl group at the 2-position. It serves as a high-value specialty intermediate in the synthesis of advanced organic materials, particularly high-performance dyes, fluorescent probes, and optoelectronic compounds. Industrial users in pigment manufacturing, OLED material R&D, and fine chemical synthesis rely on its thermal stability, extended π-conjugation, and predictable electrophilic substitution behavior. This compound is widely sought for applications demanding precise molecular architecture and consistent batch-to-batch performance — 2-Phenylnaphthalene CAS NO 35465-71-5.

Application

• Intermediate in the synthesis of anthraquinone and perylene-based high-strength disperse dyes
• Building block for thermally stable liquid crystals and host materials in organic light-emitting diodes (OLEDs)
• Core scaffold in the development of fluorescent sensors and bioimaging agents
• Monomer or dopant in high-glass-transition-temperature (Tg) polymer systems for aerospace and electronics encapsulation
• Research reagent in mechanistic studies of electrophilic aromatic substitution and PAH radical chemistry
• Component in photoinitiator formulations for UV-curable coatings and inks
• Starting material for synthesizing sterically hindered ligands in transition-metal catalysis

Basic Information

Product Name	2-Phenylnaphthalene
CAS No.	35465-71-5
Molecular Formula	C16H12
Molecular Weight	204.27 g/mol
Synonyms	β-Phenylnaphthalene; 2-Phenyl-naphthalene; 2-Naphthylbenzene; NSC 60985; 2-(Phenyl)naphthalene; 2-Phenyl-2-naphthalene; 2-Phenyl-naphthalene (CAS); Biphenylnaphthalene; α-Phenylnaphthalene (incorrect but historically cited); 2-Phenyl-naphthalene (EP/USP reference name)
EINECS	252-552-4

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request. All batches meet stringent purity requirements for research and industrial use, with full traceability from synthesis through purification and packaging. Testing includes identity confirmation (IR, HPLC retention time), assay (HPLC), and impurity profiling (GC-MS). We adhere to ISO 9001-certified manufacturing practices and maintain full REACH compliance for global supply.

Storage

Preserve in a tightly closed container, protected from light. Store at room temperature (15–25°C) in a dry, well-ventilated area. Avoid exposure to direct sunlight or UV sources due to light-sensitive nature of the compound.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Assay (HPLC)	≥ 99.0%
Melting Point	108–112°C
Identification (IR)	Conforms to reference spectrum
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Water (Karl Fischer)	≤ 0.5%
Solubility	Freely soluble in chloroform, toluene, THF; slightly soluble in ethanol; insoluble in water

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