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CS-W001157 4
Total: USD 88.00

1H-Pyrazole-4-carbaldehyde

  • CAS No. 35344-95-7

  • Cat. No. CS-W019597
  • Purity≥96%
  • MDL No.MFCD02179514

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

1H-Pyrazole-4-carbaldehyde|CS-W019597

Structure of 35344-95-7

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General Information

  • CAS No. 35344-95-7
  • Cat. No. CS-W019597
  • Purity ≥96%
  • MDL No. MFCD02179514
  • Storage 4°C, stored under nitrogen
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₄H₄N₂O
  • Molecular Weight 96.09
  • Synonym(s) 1H-Pyrazole-4-carboxaldehyde
  • SMILES O=CC1=CNN=C1

Description

1H-Pyrazole-4-carbaldehyde features a conjugated aldehyde group positioned at the 4-position of the pyrazole ring, enabling direct incorporation into heterocyclic scaffolds. This electron-deficient aldehyde serves as a key building block for synthesizing bioactive molecules, particularly in medicinal chemistry and agrochemical development.

Application

1H-Pyrazole-4-carbaldehyde serves as a versatile building block in medicinal chemistry and heterocyclic synthesis, enabling efficient access to pyrazole-based scaffolds. Its aldehyde functionality facilitates nucleophilic additions, reductive aminations, and condensation reactions with hydrazines, amines, and enolizable carbonyls. The molecule exhibits good bench stability and is compatible with common protecting group strategies, making it well-suited for multi-step synthetic sequences and API intermediate development.

Synthesis

  • Route1

    References

    • European Journal of Organic Chemistry, , # 2 p. 260 - 263
  • Route2
    • null|null
      18655-47-5
    • ~86%
    • In-stock
      1H-Pyrazole-4-carbaldehyde|CS-W019597
      35344-95-7

    References

    • Journal of Materials Chemistry, , vol. 16, # 26 p. 2736 - 2745
  • Route3
    • 1-[(4-methoxyphenyl)methyl]pyrazole-4-carbaldehyde|CS-0061971
      153687-35-5
    • ~%
    • In-stock
      1H-Pyrazole-4-carbaldehyde|CS-W019597
      35344-95-7

    References

    • WO2005/813 A1, ; Page 36 ; WO 2005/000813 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

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Computational Chemistry Data

  • TPSA   45.75
  • LogP   0.2222
  • H_Acceptors   2
  • H_Donors   1
  • Rotatable_Bonds   1

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