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CS-W001157 4
Total: USD 88.00

2-Methylthiophene-3-carboxylic acid

  • CAS No. 1918-78-1

  • Cat. No. CS-W005121
  • Molecule weight142.18
  • Purity≥96%
  • MDL No.MFCD01859891

*For research and further manufacturing use only, not for direct human use.

2-Methylthiophene-3-carboxylic acid|CS-W005121

Structure of 1918-78-1

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General Information

  • CAS No. 1918-78-1
  • Cat. No. CS-W005121
  • Purity ≥96%
  • MDL No. MFCD01859891
  • Storage Store at room temperature
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₆H₆O₂S
  • Molecular Weight 142.18
  • Synonym(s) 3-Carboxy-2-methylthiophene, 2-Methyl-3-thenoic acid
  • SMILES O=C(C1=C(C)SC=C1)O

Description

2-Methylthiophene-3-carboxylic acid features a conjugated thiophene core with an electron-rich heterocycle and a carboxylic acid group, enabling direct functionalization in cross-coupling reactions. This scaffold offers enhanced solubility in polar organic solvents and stability under standard bench conditions, making it suitable for synthetic intermediates in pharmaceutical and materials chemistry applications.

Application

2-Methylthiophene-3-carboxylic acid serves as a versatile building block in heterocyclic synthesis, enabling efficient access to biologically relevant scaffolds. Its carboxylic acid functionality facilitates direct coupling reactions, while the thiophene core provides robust stability and favorable electronic properties for further functionalization. The methyl group enhances solubility and reactivity in standard transformations, making it well-suited for medicinal chemistry and process development workflows.

Synthesis

  • Route1
    • In-stock
      Thiophene-3-carboxylic acid|CS-W004615
      88-13-1
    • null|null
      74-88-4
    • ~91%
    • In-stock
      2-Methylthiophene-3-carboxylic acid|CS-W005121
      1918-78-1

    References

    • Lang, Martin; Seifert, Markus H.-J.; Wolf, Kristina K.; Aschenbrenner, Andrea; Baumgartner, Roland; Wieber, Tanja; Trentinaglia, Viola; Blisse, Marcus; Tajima, Nobumitsu; Yamashita, Tokuyuki; Vitt, Daniel; Noda, Hitoshi Bioorganic and Medicinal Chemistry Letters, 2011 , vol. 21, # 18 p. 5417 - 5422
  • Route2
    • null|null
      74-88-4
    • ~20%
    • In-stock
      2-Methylthiophene-3-carboxylic acid|CS-W005121
      1918-78-1

    References

    • Wyeth Patent: US2007/4786 A1, 2007 ; Location in patent: Page/Page column 18-19 ; US 20070004786 A1
  • Route3
    • null|null
      60-29-7
    • In-stock
      Thiophene-3-carboxylic acid|CS-W004615
      88-13-1
    • null|null
      74-88-4
    • ~%
    • In-stock
      2-Methylthiophene-3-carboxylic acid|CS-W005121
      1918-78-1

    References

    • US5475022 A1, ;

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS07
Signal Word : Warning
UN#: N/A
Class : N/A
Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

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Computational Chemistry Data

  • TPSA   37.3
  • LogP   1.75472
  • H_Acceptors   2
  • H_Donors   1
  • Rotatable_Bonds   1

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