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5-Pyrazolone

CAS 137-44-0: 5-Pyrazolone

Description:5-Pyrazolone, with the CAS number 137-44-0, is an organic compound characterized by its five-membered ring structure containing two nitrogen atoms. It is a derivative of pyrazole and is known for its keto-enol tautomerism, where it can exist in both keto and enol forms. This compound typically appears as a white to pale yellow crystalline solid and is soluble in polar solvents like water and alcohols. 5-Pyrazolone exhibits various chemical properties, including the ability to form complexes with metal ions, which makes it useful in analytical chemistry and as a reagent in various organic synthesis reactions. Additionally, it has applications in the pharmaceutical industry, particularly in the development of analgesics and anti-inflammatory agents. The compound's reactivity is influenced by the presence of functional groups, allowing for further derivatization. Safety data indicates that it should be handled with care, as it may pose health risks upon exposure. Overall, 5-Pyrazolone is a versatile compound with significant relevance in both research and industrial applications.

Formula:C3H4N2O

InChI:InChI=1S/C3H4N2O/c6-3-1-2-4-5-3/h2H,1H2,(H,5,6)

InChI key:InChIKey=ZRHUHDUEXWHZMA-UHFFFAOYSA-N

SMILES:O=C1NN=CC1

  • Synonyms:
  • 1,4-Dihydropyrazol-5-one
  • 1H-Pyrazol-5(4H)-one
  • 2,4-dihydro-3H-pyrazol-3-one
  • 2-Pyrazolin-5-one
  • 3H-Pyrazol-3-one, 2,4-dihydro-
  • NSC 243823
  • 5-Pyrazolone
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Found 6 products.

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Ref: IN-DA0012O9

1g36.00 €
5g93.00 €
10g102.00 €
25g145.00 €
250mg24.00 €
Estimated delivery in United States, on Tuesday 11 Mar 2025
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1H-pyrazol-5(4H)-one

CAS:137-44-0

Ref: 54-OR79427

5g96.00 €
25g352.00 €
Estimated delivery in United States, on Wednesday 12 Mar 2025
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5-Pyrazolone

CAS:137-44-0

Ref: 3B-P2563

1g77.00 €
200mg31.00 €
Estimated delivery in United States, on Friday 14 Mar 2025
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2H-Pyrazol-3-ol

CAS:137-44-0

Ref: 10-F316704

1gTo inquire
5g53.00 €
10g98.00 €
25g186.00 €
100g460.00 €
250mgTo inquire
Estimated delivery in United States, on Friday 21 Mar 2025
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1H-Pyrazol-5(4H)-one

CAS:137-44-0

Ref: 10-F319033

1g20.00 €
5g31.00 €
10g60.00 €
25g134.00 €
Estimated delivery in United States, on Friday 21 Mar 2025
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1H-Pyrazol-5(4H)-one

CAS:137-44-0

Ref: 3D-FP140882

1gDiscontinuedRequest information
2gDiscontinuedRequest information
100mgDiscontinuedRequest information
250mgDiscontinuedRequest information
500mgDiscontinuedRequest information
Discontinued product
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