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Uranine

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Origin: China

Cas No: 518-47-8

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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  • Products Specification
  • Product Description

  • Quick Details

    CAS No.:
    518-47-8
    Other Names:
    C.I. 45350
    MF:
    C20H12O5.2Na
    EINECS No.:
    518-47-8
    Place of Origin:
    China
    Grade Standard:
    Industrial Grade, Food Grade, Medicine Grade, Agriculture Grade, Reagent Grade, Electron Grade
    Purity:
    ≥98%
    Appearance:
    Red powder
    Application:
    Fluorescein
    Brand Name:
    FinerChem
    Model Number:
    518-47-8
    Product Name:
    Fluorescein disodium salt
    CAS:
    518-47-8
    Assay:
    99.0 Min

    Packaging&Delivery

    Packaging Details
    Aluminum foil bag for within 10kg
    Fiber drum for 10kg and more
    Port
    SHANGHAI, QINGDAO , BEIJING, SHENZHEN , DALIAN
    Lead Time:
    Quantity(Kilograms)1 - 500>500
    Est. Time(days)4To be negotiated

    Products Description

    Product Name
    Fluorescein disodium salt
    CAS No.
    518-47-8
    Appearance
    Red powder
    Assay
    ≥98%
    Capacity
    2000mt/year
    Min.packing
    1gram
    Application
    Fluorescein
    Standard
    Export 
    Brand
    Finerchem 


    More information

    Synonyms: Acid Yellow 73 
                         C.I. 45350 
                         Disodium 2-(3-oxo-6-oxidoxanthen-9-yl)benzoate 
                         Uranine 
    Molecular Formula: C20H12O5.2Na
    Molecular Weight: 376.27 
    CAS Registry Number: 518-47-8 
    EINECS: 208-253-0 
    Melting point: 320 ºC 
    Water solubility: 500 g/L (20 ºC)

  • Property

    CAS No.: 518-47-8 Formula: C20H10Na2O5 Molecular Weight: 376.27000

    Basic Info

    Chemical Name Uranine
    Synonyms

    furanium;
    URANIN;
    9-(2-Carboxyphenyl)-6-hydroxy-3H-xanthen-3-one disodium salt;
    Fluorescein disodium salt;
    YELLOW 8;
    ful-glo;
    URANINE;
    Fluorescein Sodium Salt;
    c.i.766;
    Fluorone;
    D and C yellow dye No 8;
    Fluorescein,disodium salt;
    Spiro[isobenzofuran-1(3H),9‘-[9H]xanthen]-3-one, 3‘,6‘-dihydroxy-, disodium salt;
    Acid Yellow 73,D&C;
    Sodium 3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate);
    uranineo;
    Yellow No. 8,NaFl,NaFluo;
    Fluorin;
    fluoresceine disodium salt;

    CAS No. 518-47-8
    Molecular Formula C20H10Na2O5
    Molecular Weight 376.27000
    PSA 81.65000
    LogP 4.54220

    Properties

    Appearance & Physical State orange powder
    Density 1.601 g/cm3 (20ºC)
    Boiling Point 620.8ºC at 760 mmHg
    Melting Point 320ºC
    Flash Point 232.6ºC
    Water Solubility 500 g/L (20 ºC)
    Stability Stable.
    Storage Condition Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

    Safety Info

    RTECS LM5425000
    Safety Statements S26-S37/39
    HS Code 3204200000
    WGK Germany 1
    Risk Statements R36
    Hazard Codes Xi

    Synthesis Route

    3′,6′-dibromofluoran→Uranine
    3',6'-dibromo-3H-spiro[benzo[c]thiophene-1,9'-xanthen]-3-one→Uranine

    Precursor

    3',6'-dibromo-3H-spiro[benzo[c]thiophene-1,9'-xanthen]-3-one
    3′,6′-dibromofluoran

    Downstream Product

    3'-butoxy-6'-hydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
    bromoeosin
    butyl 2-(3-butoxy-6-oxoxanthen-9-yl)benzoate

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