Description

2-Ethynyl-Naphthalene (CAS NO 2949-26-0) is a specialized aromatic acetylene derivative that serves as a versatile and valuable building block in advanced organic synthesis. Its unique structure, featuring a reactive ethynyl group fused to a naphthalene core, makes it a critical precursor for constructing complex molecular architectures. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science sectors, enabling the development of novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly in creating molecules with naphthalene-based scaffolds.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides, where its structure contributes to specific biological activity.
• Organic Light-Emitting Diodes (OLEDs): Acts as a fundamental building block for novel organic semiconductors and emissive materials in display and lighting technologies.
• Ligand and Catalyst Development: Employed in the synthesis of sophisticated ligands for transition metal catalysis and organometallic chemistry.
• Polymer and Material Science: Serves as a monomer or cross-linking agent in the creation of specialty polymers, dendrimers, and advanced functional materials.
• Academic and Industrial R&D: A crucial reagent for exploratory chemistry in universities and corporate research laboratories focused on novel aromatic systems.

Basic Information

Product Name	2-Ethynyl-Naphthalene
CAS No.	2949-26-0
Molecular Formula	C₁₂H₈
Molecular Weight	152.19 g/mol
Synonyms	2-Ethynylnaphthalene; 2-Naphthylethyne; Naphthalen-2-ylethyne; 2-(Ethynyl)naphthalene; 2-Naphthaleneacetylene; β-Ethynylnaphthalene; 2-Ethinylnaphthalin
EINECS	220-968-5

Quality Control

Our 2-Ethynyl-Naphthalene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to confirm identity and purity against established specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We support cGMP compliance for pharmaceutical applications and can tailor quality protocols to meet specific customer requirements.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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