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    Chemical structure of Fluorescein-6-isothiocyanate , CAS 18861-78-4, AChemBlock W161613

    Fluorescein-6-isothiocyanate

    Catalog ID: W161613

    Product Name: Fluorescein-6-isothiocyanate
    CAS: 18861-78-4
    MDL: MFCD00041838
    Purity: 97%
    FW: 389.38
    Formula: C₂₁H₁₁NO₅S
    Synonym(s): 3',6'-dihydroxy-6-isothiocyanato-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
    Smiles: O=C1OC2(C3=C(OC4=C2C=CC(O)=C4)C=C(O)C=C3)C5=C1C=CC(N=C=S)=C5
    Fluorescein-6-isothiocyanate 97%, CAS#: 18861-78-4, Cat ID: W161613, BUILDING BLOCKS, AChemBlock
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    Jul 17,2026

    update on 06-21-2026

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    Purity 97%
    Appearances
    Storage Store at 0-8 °C
    Shipping normal
    MSDS Download MSDS
    IUPAC Name 3',6'-dihydroxy-6-isothiocyanato-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
    HTS Code
    Smiles O=C1OC2(C3=C(OC4=C2C=CC(O)=C4)C=C(O)C=C3)C5=C1C=CC(N=C=S)=C5
    InChiKey GTQFZXYECNSNNC-UHFFFAOYSA-N
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