Tel:

Email:

EN
Cat. No. Size / Unit Price Qty
CS-W001157 4
Total: USD 88.00

Pyrazol-5-ol

  • CAS No. 137-45-1

  • Cat. No. CS-W004179
  • Molecule weight84.08
  • Purity≥95%
  • MDL No.MFCD11227225

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

Pyrazol-5-ol|CS-W004179

Structure of 137-45-1

Please choose your location and provide accurate information for you
Size Stock
Price Quantity

* Please select Quantity before adding items.

General Information

  • CAS No. 137-45-1
  • Cat. No. CS-W004179
  • Purity ≥95%
  • MDL No. MFCD11227225
  • Storage Store at room temperature
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₃H₄N₂O
  • Molecular Weight 84.08
  • Synonym(s) 1H-Pyrazol-3-ol
  • SMILES O=C1NNC=C1

Description

1H-pyrazol-3(2H)-one features a core heterocyclic scaffold with tautomeric equilibrium between lactam and enol forms, enabling versatile participation in transition-metal-catalyzed couplings and cycloadditions. This bench-stable, moisture-tolerant compound integrates readily into medicinal chemistry libraries as a privileged scaffold for kinase inhibitors and antiviral agents.

Application

1H-Pyrazol-3(2H)-one serves as a versatile scaffold for constructing biologically relevant heterocycles and functionalized building blocks. Its tautomeric equilibrium enables diverse reactivity, facilitating nucleophilic additions, electrophilic substitutions, and transition-metal-catalyzed couplings. The compound exhibits bench stability, ease of purification, and compatibility with common protecting group strategies, making it well-suited for iterative synthesis in medicinal chemistry and process development workflows.

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

To search for quality control of cas , please enter both the product number and the lot/batch number.

Computational Chemistry Data

  • TPSA   48.65
  • LogP   -0.297
  • H_Acceptors   1
  • H_Donors   2
  • Rotatable_Bonds   0

Recently Viewed Products

Leave US a Message
Upload Pictures

Key Words

  • Pyrazol-5-ol sigmaPyrazol-5-ol manufacturerPyrazol-5-ol pricePyrazol-5-ol structurePyrazol-5-ol SDSbuy Pyrazol-5-olPyrazol-5-ol supplierPyrazol-5-ol usesPyrazol-5-ol molecular weightprice of Pyrazol-5-olPyrazol-5-ol chemical name formula of Pyrazol-5-ol
This product is not sold in the region.
Confirm
How to get a Lot Number

Lot numbers can be found on the outside label of a product:

ChemScene Label