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CS-W001157 4
Total: USD 88.00

1H-Pyrazol-1-ol

  • CAS No. 81945-73-5

  • Cat. No. CS-0052531
  • Molecule weight84.08
  • Purity≥96%
  • MDL No.MFCD11850516

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

1H-Pyrazol-1-ol|CS-0052531

Structure of 81945-73-5

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General Information

  • CAS No. 81945-73-5
  • Cat. No. CS-0052531
  • Purity ≥96%
  • MDL No. MFCD11850516
  • Storage Store at room temperature
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₃H₄N₂O
  • Molecular Weight 84.08
  • Synonym(s) 1H-Pyrazole,1-hydroxy
  • SMILES ON1C=CC=N1

Description

1H-Pyrazol-1-ol serves as a key scaffold in medicinal chemistry, featuring a polar hydroxyl group that enhances solubility and hydrogen-bonding capacity. This bench-stable heterocycle integrates readily into diverse synthetic pathways, enabling efficient access to bioactive molecules through functionalization at the nitrogen and carbon positions.

Application

1H-Pyrazol-1-ol serves as a versatile building block in medicinal chemistry, enabling access to pyrazole-based heterocycles via standard functionalization protocols. Its stability under routine bench conditions and compatibility with common coupling reactions facilitate efficient synthesis of bioactive scaffolds. The compound functions as a key intermediate for constructing pharmacologically relevant frameworks through direct substitution or cyclization pathways.

Synthesis

  • Route1

    References

    • Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , # 3 p. 243 - 248
  • Route2
    • 1-(Benzyloxy)-1H-pyrazole|CS-0080698
      100159-47-5
    • ~95%
    • In-stock
      1H-Pyrazol-1-ol|CS-0052531
      81945-73-5

    References

    • Journal of Organic Chemistry, , vol. 60, # 16 p. 4995 - 4998
  • Route3
    • null|null
      145162-47-6
    • ~75%
    • In-stock
      1H-Pyrazol-1-ol|CS-0052531
      81945-73-5

    References

    • Acta Chemica Scandinavica, , vol. 50, # 6 p. 549 - 555

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   38.05
  • LogP   0.1204
  • H_Acceptors   3
  • H_Donors   1
  • Rotatable_Bonds   0

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