Cas no 81294-11-3 (2-Ethynyl-3-methylthiophene)

2-Ethynyl-3-methylthiophene is a specialized heterocyclic compound featuring an ethynyl group attached to a methyl-substituted thiophene ring. This structure imparts reactivity suitable for applications in organic synthesis, particularly in cross-coupling reactions and polymer chemistry. The ethynyl moiety allows for further functionalization via Sonogashira or click chemistry, while the methyl group enhances stability and modulates electronic properties. Its thiophene backbone contributes to conjugation, making it valuable in materials science for developing conductive polymers or optoelectronic materials. The compound is typically handled under inert conditions due to its sensitivity. Its versatility and well-defined reactivity profile make it a useful intermediate in fine chemical and advanced material research.
2-Ethynyl-3-methylthiophene structure
2-Ethynyl-3-methylthiophene structure
Product Name:2-Ethynyl-3-methylthiophene
CAS No:81294-11-3
MF:C7H6S
MW:122.187540531158
CID:986615
PubChem ID:12938506
Update Time:2025-06-09

2-Ethynyl-3-methylthiophene Chemical and Physical Properties

Names and Identifiers

    • 2-Ethynyl-3-methylthiophene
    • 2-ethynyl-3-methyl-thiophene
    • F2147-2802
    • EN300-184385
    • CS-0237491
    • DTXSID80513466
    • 81294-11-3
    • AKOS006240693
    • E84542
    • SCHEMBL3346930
    • DB-365111
    • Inchi： 1S/C7H6S/c1-3-7-6(2)4-5-8-7/h1,4-5H,2H3
    • InChI Key： OXECOAGMUUJLPS-UHFFFAOYSA-N
    • SMILES： S1C=CC(C)=C1C#C

Computed Properties

  • Exact Mass: 122.01902136g/mol
  • Monoisotopic Mass: 122.01902136g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 1
  • Heavy Atom Count: 8
  • Rotatable Bond Count: 1
  • Complexity: 120
  • 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: 2.2
  • Topological Polar Surface Area: 28.2?2

2-Ethynyl-3-methylthiophene Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
TRC
B126148-10mg
2-ethynyl-3-methylthiophene
 81294-11-3
10mg
 $ 50.00 2022-06-07
TRC
B126148-50mg
2-ethynyl-3-methylthiophene
 81294-11-3
50mg
 $ 185.00 2022-06-07
TRC
B126148-100mg
2-ethynyl-3-methylthiophene
 81294-11-3
100mg
 $ 295.00 2022-06-07
A2B Chem LLC
AE02467-1g
2-ETHYNYL-3-METHYL-THIOPHENE
 81294-11-3 98%
1g
 $204.00 2024-04-19
1PlusChem
1P008N5V-1g
2-ETHYNYL-3-METHYL-THIOPHENE
 81294-11-3 95%
1g
 $380.00 2025-02-24
NAN JING YAO SHI KE JI GU FEN Co., Ltd.
PBXH502-100mg
2-ethynyl-3-methyl-thiophene
 81294-11-3 95%
100mg
 ￥432.0 2024-04-17
NAN JING YAO SHI KE JI GU FEN Co., Ltd.
PBXH502-250mg
2-ethynyl-3-methyl-thiophene
 81294-11-3 95%
250mg
 ￥734.0 2024-04-17
NAN JING YAO SHI KE JI GU FEN Co., Ltd.
PBXH502-1g
2-ethynyl-3-methyl-thiophene
 81294-11-3 95%
1g
 ￥1980.0 2024-04-17
eNovation Chemicals LLC
Y1235865-100mg
2-ETHYNYL-3-METHYL-THIOPHENE
 81294-11-3 97%
100mg
 $105 2024-06-07
A2B Chem LLC
AE02467-100mg
2-ETHYNYL-3-METHYL-THIOPHENE
 81294-11-3 98%
100mg
 $43.00 2024-04-19

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