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    Chemical structure of 5-chloro-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-3-one , CAS 1421601-17-3, AChemBlock S80087

    5-chloro-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-3-one

    Catalog ID: S80087

    Product Name: 5-chloro-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-3-one
    CAS: 1421601-17-3
    MDL: MFCD22392167
    Purity: 97%
    FW: 170.56
    Formula: C₅H₃ClN₄O
    Synonym(s): 5-chloro-[1,2,4]triazolo[4,3-a]pyrazin-3(2h)-one
    Smiles: O=C1NN=C2/C=N\C=C(\Cl)N12
    5-chloro-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-3-one 97%, CAS#: 1421601-17-3, Cat ID: S80087, BUILDING BLOCKS, AChemBlock
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    Packaging:1G List Price: $600 Quantity:
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    Aug 10,2026

    Packaging:5G List Price: $1,795 Quantity:
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    Aug 10,2026

    update on 06-15-2026

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    Safety Information
    Safety Information
    Pictograms GHS07
    Signal Word Warning
    Hazard Statements Causes skin irritation
    May cause an allergic skin reaction
    Causes serious eye irritation
    May cause respiratory irritation
    Precautionary Statements Avoid breathing dust/fume/gas/mist/vapours/spray.
    Wear protective gloves/protective clothing/eye protection/face protection.
    Product Information
    Product Information
    Product Information
    Purity 97%
    Appearances
    Storage Store at 0-8 °C
    Shipping Room Temp
    MSDS Download MSDS
    IUPAC Name 5-chloro-[1,2,4]triazolo[4,3-a]pyrazin-3(2h)-one
    HTS Code 29339982
    Smiles O=C1NN=C2/C=N\C=C(\Cl)N12
    InChiKey SJKKQNWFYONCAP-UHFFFAOYSA-N
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