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CS-W001157 4
Total: USD 88.00

1-(4-Chlorophenyl)-1H-pyrazol-3-ol

  • CAS No. 76205-19-1

  • Cat. No. CS-W021232
  • Molecule weight194.62
  • Purity≥96%
  • MDL No.MFCD11215309

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

1-(4-Chlorophenyl)-1H-pyrazol-3-ol|CS-W021232

Structure of 76205-19-1

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General Information

  • CAS No. 76205-19-1
  • Cat. No. CS-W021232
  • Purity ≥96%
  • MDL No. MFCD11215309
  • Storage Store at room temperature
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₉H₇ClN₂O
  • Molecular Weight 194.62
  • Synonym(s) 1-(4-chlorophe; 1-(4-Chlorophenyl)-1H-pyrazol-3-ol
  • SMILES OC1=NN(C=C1)C1=CC=C(Cl)C=C1

Description

1-(4-Chlorophenyl)-1H-pyrazol-3-ol features a pyrazole core functionalized with a para-chlorophenyl group and a phenolic hydroxyl, offering enhanced electron density at the 3-position. This scaffold integrates readily into bioactive molecules, enabling efficient coupling in medicinal chemistry applications under standard conditions.

Application

1-(4-Chlorophenyl)-1H-pyrazol-3-ol serves as a versatile building block in medicinal chemistry, enabling the synthesis of bioactive heterocycles through standard functionalization at the C3-hydroxyl and C1-aryl positions. Its bench-stable nature and tolerance to common reaction conditions facilitate downstream derivatization, including coupling reactions and electrophilic substitutions, making it a practical scaffold for drug discovery campaigns.

Synthesis

  • Route1
    • 1-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-3-ol|CS-0555916
      6119-12-6
    • ~77%
    • 1-(4-Chlorophenyl)-1H-pyrazol-3-ol|CS-W021232
      76205-19-1

    References

    • Mercader, Josep V.; Agullo, Consuelo; Abad-Somovilla, Antonio; Abad-Fuentes, Antonio Organic and Biomolecular Chemistry, 2011 , vol. 9, # 5 p. 1443 - 1453
  • Route2
    • 1-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-3-ol|CS-0555916
      6119-12-6
    • null|null
      71-48-7
    • ~%
    • 1-(4-Chlorophenyl)-1H-pyrazol-3-ol|CS-W021232
      76205-19-1

    References

    • US6040458 A1, ;
  • Route3
    • null|null
      205178-82-1
    • null|null
      922-67-8
    • ~%
    • 1-(4-Chlorophenyl)-1H-pyrazol-3-ol|CS-W021232
      76205-19-1

    References

    • US5707936 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   38.05
  • LogP   2.2313
  • H_Acceptors   3
  • H_Donors   1
  • Rotatable_Bonds   1

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