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    Chemical structure of 4-Pyridinesulfonic acid , CAS 5402-20-0, AChemBlock M15399

    4-Pyridinesulfonic acid

    Catalog ID: M15399

    Product Name: 4-Pyridinesulfonic acid
    CAS: 5402-20-0
    MDL: MFCD00234082
    Purity: 95%
    FW: 159.16
    Formula: C₅H₅NO₃S
    Synonym(s): pyridine-4-sulfonic acid
    Smiles: O=S(=O)(O)C1=CC=NC=C1
    4-Pyridinesulfonic acid 95%, CAS#: 5402-20-0, Cat ID: M15399, BUILDING BLOCKS, AChemBlock
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    Packaging:1G List Price: $95 Quantity:
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    Jun 29,2026

    Packaging:5G List Price: $290 Quantity:
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    Jun 29,2026

    Packaging:25G List Price: $1,045 Quantity:
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    Jun 29,2026

    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 95%
    Appearances
    Storage Store at 0-8 °C
    Shipping Room Temp
    MSDS Download MSDS
    IUPAC Name pyridine-4-sulfonic acid
    HTS Code 2933399100
    Smiles O=S(=O)(O)C1=CC=NC=C1
    InChiKey PTWLOSARXIJRRJ-UHFFFAOYSA-N
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