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CS-W001157 4
Total: USD 88.00

5-Chloropyrazolo(1,5-a)pyrimidin-7-one

  • CAS No. 99898-84-7

  • Cat. No. CS-0060099
  • Purity≥98%
  • MDL No.None

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

5-Chloropyrazolo(1,5-a)pyrimidin-7-one|CS-0060099

Structure of 99898-84-7

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General Information

  • CAS No. 99898-84-7
  • Cat. No. CS-0060099
  • Purity ≥98%
  • MDL No. None
  • Storage 4°C, stored under nitrogen
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₆H₄ClN₃O
  • Molecular Weight 169.57
  • Synonym(s) None
  • SMILES C1=2NC(=CC(N1N=CC2)=O)Cl

Description

5-Chloropyrazolo(1,5-a)pyrimidin-7-one is a heterocyclic scaffold featuring a chlorine substituent at the 5-position and a ketone at the 7-position. This electron-deficient core integrates readily into medicinal chemistry campaigns, offering enhanced metabolic stability and predictable reactivity in cross-coupling and functionalization processes.

Application

5-Chloropyrazolo(1,5-a)pyrimidin-7-one serves as a versatile heterocyclic building block for medicinal chemistry and materials science applications. Its electron-deficient pyrazolo[1,5-a]pyrimidine core enables efficient functionalization via palladium-catalyzed cross-coupling reactions, while the chloro substituent at C5 provides a reliable handle for nucleophilic substitution. The compound exhibits excellent bench stability and compatibility with common protecting group strategies, facilitating its use in multi-step syntheses of kinase inhibitors and other bioactive scaffolds.

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS07,GHS09
Signal Word : Warning
UN#: 3077
Class : 9
Packing Group : Ⅲ
Hazard Statements : H315-H317-H319-H410
Precautionary Statements : P261-P264-P272-P273-P280-P302+P352-P362-P391-P501

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Computational Chemistry Data

  • TPSA   50.16
  • LogP   0.676
  • H_Acceptors   3
  • H_Donors   1
  • Rotatable_Bonds   0

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