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Atomfair 1-Ethyl-4-ethynylbenzene C10H10 CAS 40307-11-7

1-Ethyl-4-ethynylbenzene (CAS No. 40307-11-7) is a high-purity aromatic compound with the molecular formula C10H10. This specialty chemical features an ethyl group and an ethynyl group positioned para to each other on a benzene ring, offering unique reactivity for advanced organic synthesis and material science applications. Its well-defined structure makes it a valuable intermediate for pharmaceuticals, agrochemicals, and functional materials. Available in research quantities, our product undergoes rigorous QC testing (GC, NMR) to ensure ≥98% purity, meeting the stringent demands of academic and industrial researchers. Supplied in amber glass vials under inert atmosphere to ensure stability.

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Description

1-Ethyl-4-ethynylbenzene (CAS No. 40307-11-7) is a high-purity aromatic compound with the molecular formula C10H10. This specialty chemical features an ethyl group and an ethynyl group positioned para to each other on a benzene ring, offering unique reactivity for advanced organic synthesis and material science applications. Its well-defined structure makes it a valuable intermediate for pharmaceuticals, agrochemicals, and functional materials. Available in research quantities, our product undergoes rigorous QC testing (GC, NMR) to ensure ≥98% purity, meeting the stringent demands of academic and industrial researchers. Supplied in amber glass vials under inert atmosphere to ensure stability.

Properties

  • CAS Number: 40307-11-7
  • Complexity: 129
  • IUPAC Name: 1-ethyl-4-ethynyl-benzene
  • InChI: InChI=1S/C10H10/c1-3-9-5-7-10(4-2)8-6-9/h1,5-8H,4H2,2H3
  • InChI Key: ZNTJVJSUNSUMPP-UHFFFAOYSA-N
  • Exact Mass: 130.078250319
  • Molecular Formula: C10H10
  • Molecular Weight: 130.19
  • SMILES: CCC1=CC=C(C=C1)C#C
  • Monoisotopic Mass: 130.078250319
  • Synonyms: 1-ethyl-4-ethynylbenzene, 40307-11-7, Benzene, 1-ethyl-4-ethynyl-, DTXSID00193320, 1-ETHYL,4-ETHYNYL-BENZENE, 4-ethylphenyl acetylene, DTXCID10115811, 609-817-2, inchi=1/c10h10/c1-3-9-5-7-10(4-2)8-6-9/h1,5-8h,4h2,2h, 4-Ethylphenylacetylene, 1-ETHYL-4-ETH-1-YNYLBENZENE, MFCD00173887, P-ETHYLPHENYLACETYLENE, Ethyl-4-ethynylbenzene, 4-ethyl-1-ethynylbenzene, SCHEMBL455457, SCHEMBL457760, SCHEMBL935811, SCHEMBL1610566, SCHEMBL19437245, 1-Ethyl-4-ethynylbenzene, 98%, SBB063670, AKOS005146065, AC-4955, CS-W013433, HY-W012717, SB66851, AS-14581, SY018461, DB-028866, E0749, EN300-103947, Z1080385542

Application

1-Ethyl-4-ethynylbenzene serves as a key building block in organic synthesis, particularly for Sonogashira coupling reactions to create extended π-conjugated systems. Its ethynyl functionality enables click chemistry applications in polymer science and material design. Researchers utilize this compound in developing liquid crystals, OLED materials, and pharmaceutical intermediates due to its rigid aromatic backbone and reactive alkyne group.

Safety and Hazards

GHS Hazard Statements

  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (97.6%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2 (100%)
  • STOT SE 3 (97.6%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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