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CS-W001157 4
Total: USD 88.00

2-Methylterephthalic acid

  • CAS No. 5156-01-4

  • Cat. No. CS-W018453
  • Purity≥98%
  • MDL No.MFCD09835103

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

2-Methylterephthalic acid|CS-W018453

Structure of 5156-01-4

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General Information

  • CAS No. 5156-01-4
  • Cat. No. CS-W018453
  • Purity ≥98%
  • MDL No. MFCD09835103
  • Storage Store at room temperature
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₉H₈O₄
  • Molecular Weight 180.16
  • Synonym(s) Methylterephthalic acid
  • SMILES O=C(O)C1=CC=C(C(=O)O)C(=C1)C

Description

2-Methylterephthalic acid features a para-disubstituted benzene core with carboxylic acid and methyl groups, enabling robust integration into polyesters and polyamides. This sterically hindered aromatic diacid delivers enhanced thermal stability and crystallinity in polymer matrices, supporting high-performance applications across engineering plastics and fiber production.

Application

2-Methylterephthalic acid serves as a versatile building block in polycondensation reactions, enabling the synthesis of high-performance polyesters with enhanced thermal stability and rigidity. Its ortho-methyl substituent provides steric and electronic modulation, improving crystallinity and processability. The compound exhibits excellent bench stability, facilitates straightforward purification via recrystallization, and demonstrates broad compatibility with standard esterification and amidation protocols in industrial-scale polymer synthesis.

Synthesis

  • Route1

    References

    • Anzalone, Luigi; Hirsch, Jerry A. Journal of Organic Chemistry, 1985 , vol. 50, # 12 p. 2128 - 2133
  • Route2
    • null|null
      124-38-9
    • ~90%
    • In-stock
      2-Methylterephthalic acid|CS-W018453
      5156-01-4

    References

    • ALANTOS PHARMACEUTICALS, INC. Patent: WO2006/116157 A2, 2006 ; Location in patent: Page/Page column 77 ; WO 2006/116157 A2
  • Route3
    • null|null
      95-63-6
    • ~38%
    • In-stock
      2-Methylterephthalic acid|CS-W018453
      5156-01-4
    • In-stock
      1,2,4-Benzenetricarboxylic acid|CS-W015125
      528-44-9

    References

    • US2011/71314 A1, ; Page/Page column 14 ;

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   74.6
  • LogP   1.39142
  • H_Acceptors   2
  • H_Donors   2
  • Rotatable_Bonds   2

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