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    Chemical structure of 3-ethynyl-5-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-4-one , CAS 2995297-71-5, AChemBlock AD245671

    3-ethynyl-5-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-4-one

    Catalog ID: AD245671

    Product Name: 3-ethynyl-5-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-4-one
    CAS: 2995297-71-5
    Purity: 95%
    FW: 175.19
    Formula: C₉H₉N₃O
    Smiles: C#CC1=C(N(CC2)N=C1)C(N2C)=O
    3-ethynyl-5-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-4-one 95%, CAS#: 2995297-71-5, Cat ID: AD245671, BUILDING BLOCKS, AChemBlock
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    Packaging:250MG List Price: $635 Quantity:
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    Oct 16,2026

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    Packaging:5G List Price: $4,185 Quantity:
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    Oct 16,2026

    update on 09-17-2026

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    Purity 95%
    Appearances
    Storage Store at 0-8 °C
    Shipping normal
    MSDS Download MSDS
    IUPAC Name 3-ethynyl-5-methyl-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one
    HTS Code
    Smiles C#CC1=C(N(CC2)N=C1)C(N2C)=O
    InChiKey ONXOTUZMLGAYIJ-UHFFFAOYSA-N
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