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

3H-Pyrazol-3-one, 2,4-dihydro-

CAS: 137-44-0

• Formula: C₃H₄N₂O
• Purity: 95%
• Color and Shape: Solid
• Molecular weight: 84.0767

1H-pyrazol-5(4H)-one

CAS: 137-44-0

• Purity: 98+%
• Molecular weight: 84.08g/mol

5-Pyrazolone

CAS: 137-44-0

• Formula: C₃H₄N₂O
• Purity: >98.0%(GC)
• Color and Shape: White to Light yellow powder to lump
• Molecular weight: 84.08

2H-Pyrazol-3-ol

CAS: 137-44-0

• Purity: 95.0%
• Color and Shape: Solid
• Molecular weight: 84.0780029296875

1H-Pyrazol-5(4H)-one

CAS: 137-44-0

• Purity: 95.0%
• Color and Shape: Solid, White powder
• Molecular weight: 84.0780029296875

1H-Pyrazol-5(4H)-one

CAS: 137-44-0

Pyrazol-5(4H)-one is an organic compound with the chemical formula C6H5NH. It is a heterocyclic compound …

• Formula: C₃H₄N₂O
• Purity: Min. 95%
• Molecular weight: 84.08 g/mol