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    Chemical structure of 4-Ethynyl-1H-pyrazole , CAS 57121-49-0, AChemBlock I-9969

    4-Ethynyl-1H-pyrazole

    Catalog ID: I-9969

    Product Name: 4-Ethynyl-1H-pyrazole
    CAS: 57121-49-0
    MDL: MFCD18207413
    Purity: 97%
    Appearance: light yellow solid
    FW: 92.1
    Formula: C₅H₄N₂
    Synonym(s): 4-ethynyl-1h-pyrazole
    Smiles: C#CC1=CNN=C1
    4-Ethynyl-1H-pyrazole 97%, CAS#: 57121-49-0, Cat ID: I-9969, BUILDING BLOCKS, AChemBlock
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    Packaging List Price Qty Total Total_Price($) Availability Estimated Ship Time
    Packaging:5G List Price: $230 Quantity:
    		Total:-- Total_Price($):-- Availability: In Stock Global Estimated Ship Time:

    Jun 26,2026

    Packaging:25G List Price: $1,005 Quantity:
    		Total:-- Total_Price($):-- Availability: In Stock Global Estimated Ship Time:

    Jun 26,2026

    update on 06-14-2026

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    Safety Information
    Safety Information
    Pictograms GHS07
    Signal Word Warning
    Hazard Statements Causes skin irritation
    Causes serious eye irritation
    May cause respiratory irritation
    Precautionary Statements Avoid breathing dust/fume/gas/mist/vapours/spray.
    Product Information
    Product Information
    Product Information
    Purity 97%
    Appearances light yellow solid
    Storage Store at 0-8 °C
    Shipping Room Temp
    MSDS Download MSDS
    IUPAC Name 4-ethynyl-1h-pyrazole
    HTS Code 2933199000
    Smiles C#CC1=CNN=C1
    InChiKey UXZQDYUBSQMFIE-UHFFFAOYSA-N
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