Cas no 2949-26-0 (2-Ethynylnaphthalene)

2-Ethynylnaphthalene is a naphthalene derivative featuring an ethynyl functional group at the 2-position. This compound is of interest in organic synthesis and materials science due to its conjugated structure, which enables applications in the development of advanced polymers, optoelectronic materials, and molecular scaffolds. The ethynyl group provides a reactive site for further functionalization via Sonogashira coupling or click chemistry, making it a versatile intermediate. Its rigid aromatic backbone contributes to thermal stability and electronic properties, suitable for use in organic semiconductors or ligand design. High purity grades are available for research and industrial applications requiring precise control over molecular architecture.
2-Ethynylnaphthalene structure
2-Ethynylnaphthalene structure
Product Name:2-Ethynylnaphthalene
CAS No:2949-26-0
MF:C12H8
MW:152.191923141479
MDL:MFCD00870424
CID:262169
PubChem ID:115017
Update Time:2025-11-02

2-Ethynylnaphthalene Chemical and Physical Properties

Names and Identifiers

    • 2-Ethynyl-naphthalene
    • 2-Ethynylnaphthalene
    • Naphthalene, 2-ethynyl-
    • Naphthylene-2-acetylene
    • (2-naphthyl)acetylene
    • 2-(2-naphthyl)acetylene
    • 2-(ethynyl)naphthalene
    • 2-Ethynyl Naphtalene
    • Naphthalene,2-ethynyl
    • naphth-2-yl-acetylene
    • PubChem19828
    • IZXPFTLEVNQLGD-UHFFFAOYSA-N
    • 2-ethynyl-naphthalene, AldrichCPR
    • BDBM50027783
    • AB0024021
    • ST2416869
    • W5203
    • E0933
    • A5498
    • PS-8914
    • Q-102463
    • Ethynylnaphthalene, 2-
    • InChI=1/C12H8/c1-2-10-7-8-11-5-3-4-6-12(11)9-10/h1,3-9
    • CCRIS 4255
    • CHEMBL1743361
    • CS-W005234
    • Naphthalene,2-ethynyl-
    • FT-0767483
    • SY050708
    • 123333-47-1
    • FT-0691671
    • X4QQT78LBL
    • AKOS010651579
    • 2949-26-0
    • EN300-1231827
    • MFCD00870424
    • DTXSID50183690
    • DS-1798
    • DTXCID90106181
    • DB-012638
    • MDL: MFCD00870424
    • Inchi: 1S/C12H8/c1-2-10-7-8-11-5-3-4-6-12(11)9-10/h1,3-9H
    • InChI Key: IZXPFTLEVNQLGD-UHFFFAOYSA-N
    • SMILES: C12C=CC=CC1=CC=C(C#C)C=2

Computed Properties

  • Exact Mass: 152.06300
  • Monoisotopic Mass: 152.063
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 0
  • Heavy Atom Count: 12
  • Rotatable Bond Count: 1
  • Complexity: 195
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 3.7
  • Topological Polar Surface Area: 0

Experimental Properties

  • Density: 1.07g/cm3
  • Melting Point: 40.0 to 44.0 deg-C
  • Boiling Point: 110°C/1mmHg(lit.)
  • Flash Point: 106.3oC
  • Refractive Index: 1.643
  • PSA: 0.00000
  • LogP: 2.82110

2-Ethynylnaphthalene Security Information

  • Signal Word:Warning
  • Hazard Statement: H302+H312+H332
  • Warning Statement: P280
  • Storage Condition:0-10°C

2-Ethynylnaphthalene Customs Data

  • HS CODE:2902909090
  • Customs Data:

    China Customs Code:

    2902909090

    Overview:

    2902909090. Other aromatic hydrocarbons. VAT:17.0%. Tax refund rate:9.0%. Regulatory conditions:nothing. MFN tariff:2.0%. general tariff:30.0%

    Declaration elements:

    Product Name, component content

    Summary:

    2902909090 other aromatic hydrocarbons.Supervision conditions:None.VAT:17.0%.Tax rebate rate:9.0%.MFN tariff:2.0%.General tariff:30.0%

2-Ethynylnaphthalene Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
XI GE MA AO DE LI QI ( SHANG HAI ) MAO YI Co., Ltd.
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TRC
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Fluorochem
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Fluorochem
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Fluorochem
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2-Ethynylnaphthalene Suppliers

Tiancheng Chemical (Jiangsu) Co., Ltd
Gold Member
Audited Supplier Audited Supplier
(CAS:2949-26-0)2-Ethynyl-naphthalene
Order Number:LE7816
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 11:58
Price ($):discuss personally
Amadis Chemical Company Limited
Gold Member
Audited Supplier Audited Supplier
(CAS:2949-26-0)2-Ethynylnaphthalene
Order Number:A5498
Stock Status:in Stock
Quantity:100g/25g
Purity:99%
Pricing Information Last Updated:Monday, 2 September 2024 16:04
Price ($):586.0/177.0

Additional information on 2-Ethynylnaphthalene

Exploring the Versatile Applications and Properties of 2-Ethynylnaphthalene (CAS No. 2949-26-0)

2-Ethynylnaphthalene (CAS No. 2949-26-0) is a fascinating aromatic compound that has garnered significant attention in both academic and industrial research. This compound, characterized by its naphthalene core and ethynyl functional group, serves as a valuable building block in organic synthesis and materials science. With the increasing demand for advanced materials and specialty chemicals, 2-Ethynylnaphthalene has emerged as a key player in the development of novel polymers, pharmaceuticals, and optoelectronic devices.

The unique structure of 2-Ethynylnaphthalene combines the robust aromaticity of naphthalene with the reactivity of an alkyne group. This dual functionality enables it to participate in a wide range of chemical reactions, including Sonogashira coupling, click chemistry, and polymerization processes. Researchers and chemists often explore its potential in creating conjugated polymers, which are essential for organic light-emitting diodes (OLEDs) and photovoltaic cells. The compound's ability to form extended π-conjugated systems makes it a promising candidate for next-generation electronic materials.

One of the most compelling applications of 2-Ethynylnaphthalene lies in the field of organic electronics. As the world shifts toward sustainable energy solutions, the demand for efficient and lightweight electronic components has surged. 2-Ethynylnaphthalene-based polymers exhibit excellent charge transport properties, making them ideal for use in flexible displays, solar cells, and wearable technology. These innovations align with global trends toward green energy and miniaturized electronics, positioning 2-Ethynylnaphthalene as a critical material in cutting-edge research.

Beyond electronics, 2-Ethynylnaphthalene also plays a pivotal role in pharmaceutical research. Its naphthalene scaffold is a common motif in bioactive molecules, and the ethynyl group offers a convenient handle for further derivatization. Medicinal chemists utilize this compound to develop targeted drug delivery systems and small-molecule inhibitors for various diseases. Recent studies have highlighted its potential in designing anticancer agents and anti-inflammatory drugs, addressing some of the most pressing healthcare challenges today.

The synthesis and handling of 2-Ethynylnaphthalene require careful consideration of its chemical properties. As a highly conjugated and reactive intermediate, it must be stored under inert conditions to prevent unwanted polymerization or degradation. Laboratories and manufacturers often employ advanced techniques such as Schlenk lines and glove boxes to ensure its stability. These precautions are essential for maintaining the compound's integrity and maximizing its utility in diverse applications.

In the context of market trends, the demand for 2-Ethynylnaphthalene is expected to grow steadily, driven by its expanding applications in high-tech industries. Companies specializing in fine chemicals and advanced materials are actively investing in its production and commercialization. Additionally, the rise of green chemistry initiatives has spurred interest in developing more sustainable synthesis routes for this compound, further enhancing its appeal to environmentally conscious consumers and industries.

For researchers and industry professionals seeking reliable sources of 2-Ethynylnaphthalene, it is crucial to partner with reputable suppliers who adhere to stringent quality standards. The compound's purity and consistency are paramount, especially when used in sensitive applications like drug development or electronic device fabrication. Certifications such as ISO compliance and analytical testing reports can provide assurance of its quality and performance.

In conclusion, 2-Ethynylnaphthalene (CAS No. 2949-26-0) stands out as a versatile and valuable compound with wide-ranging applications in organic electronics, pharmaceuticals, and materials science. Its unique chemical properties and adaptability make it a cornerstone of modern research and innovation. As industries continue to evolve and prioritize sustainability, the role of 2-Ethynylnaphthalene is poised to expand, offering exciting opportunities for scientific advancement and technological breakthroughs.

Recommended suppliers
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:2949-26-0)2-Ethynyl-naphthalene
LE7816
Purity:99%
Quantity:25KG,200KG,1000KG
Price ($):Inquiry
Email
Amadis Chemical Company Limited
(CAS:2949-26-0)2-Ethynylnaphthalene
A5498
Purity:99%/99%
Quantity:100g/25g
Price ($):586.0/177.0
Email