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CAS 57121-49-0

:

1H-Pyrazole, 4-ethynyl-

Description:
1H-Pyrazole, 4-ethynyl- is an organic compound characterized by its pyrazole ring structure, which consists of a five-membered ring containing two adjacent nitrogen atoms. This compound features an ethynyl group (-C≡CH) attached to the fourth position of the pyrazole ring, contributing to its reactivity and potential applications in various chemical reactions. It is typically a colorless to pale yellow liquid or solid, depending on its purity and form. The presence of the ethynyl group enhances its utility in organic synthesis, particularly in the formation of more complex molecules through coupling reactions. 1H-Pyrazole derivatives are of interest in medicinal chemistry due to their biological activities, including anti-inflammatory and antimicrobial properties. The compound's CAS number, 57121-49-0, serves as a unique identifier for regulatory and safety information. As with many pyrazole derivatives, it is essential to handle this substance with care, following appropriate safety protocols due to potential toxicity and reactivity.
Formula:C5H4N2
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Found 4 products.
  • 4-Ethynyl-1H-pyrazole

    CAS:
    Formula:C5H4N2
    Purity:97%
    Color and Shape:Solid
    Molecular weight:92.0987

    Ref: IN-DA0039YV

    1g
    131.00€
    5g
    268.00€
    10g
    603.00€
    25g
    To inquire
    100g
    To inquire
    100mg
    44.00€
    250mg
    63.00€
  • 4-Ethynyl-1H-pyrazole

    CAS:
    <p>4-Ethynyl-1H-pyrazole</p>
    Purity:98%
    Color and Shape:Solid
    Molecular weight:92.10g/mol

    Ref: 54-OR451137

    1g
    127.00€
    5g
    398.00€
    25g
    1,549.00€
    100mg
    32.00€
    250mg
    55.00€
  • 4-ETHYNYL-1H-PYRAZOLE

    CAS:
    Formula:C5H4N2
    Purity:95%
    Color and Shape:Solid
    Molecular weight:92.101

    Ref: 10-F502630

    1g
    103.00€
    5g
    293.00€
    10g
    490.00€
    25g
    964.00€
    100mg
    25.00€
    250mg
    42.00€
  • 4-Ethynyl-1H-pyrazole

    CAS:
    <p>4-Ethynyl-1H-pyrazole is a type of dipole that has a fluorine atom at the 1-position. It has been shown to have an affinity constant of 10.7 M, which is significantly higher than other dipoles such as the 4-ethynylpyridine (10.6 M) and phenylboronic acid (10.5 M). The molecular modeling study rationalized the covalent inhibitors that were first observed in this molecule. Constant values were found for both acceptor and donor groups in non-covalent interactions with single molecules, as well as with functional theory, which was used to find solvent effects on the fluorescence properties of this molecule. 4-Ethynyl-1H-pyrazole has also been shown to be a ligand for metal ions, including copper and zinc, with optical properties that can be affected by solvents such as water or ethanol.</p>
    Formula:C5H4N2
    Purity:Min. 95%
    Molecular weight:92.1 g/mol

    Ref: 3D-HCA12149

    2500mg
    410.00€