products Acetoacetate Pigment Series 1-Naphtholphthalein

1-Naphtholphthalein

    • Product Name: 1-Naphtholphthalein
    • Chemical Name (IUPAC): 3,3-Bis(4-hydroxy-1-naphthyl)-2-benzofuran-1(3H)-one
    • CAS No.: 7582-23-4
    • Chemical Formula: C28H18O4
    • Form/Physical State: Solid
    • Factroy Site: No.968 Jiangshan Road Nantong Economic and Technological Development Zone, Jiangsu, China
    • Price Inquiry: sales7@boxa-chem.com
    • Manufacturer: Nantong Acetic Acid Chemical Co., Ltd.
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    Specifications

    HS Code

    730994
    Chemical Name 1-Naphtholphthalein
    Cas Number 509-32-0
    Molecular Formula C28H18O4
    Molecular Weight 418.45 g/mol
    Appearance Green powder
    Solubility Slightly soluble in water; soluble in alcohol and ether
    Melting Point 220°C (decomposes)
    Ph Range Indicator 7.3 to 8.7
    Color Change Colorless to blue
    Iupac Name 3,3-Bis(1-naphthyl)phthalide
    Storage Conditions Store in a cool, dry place
    Synonyms C.I. 777; 1-Naphthalenephthalein
    Pubchem Cid 70154
    Hazard Statements May cause eye, skin, and respiratory irritation

    As an accredited 1-Naphtholphthalein factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Tel: +8615371019725

    Email: sales7@boxa-chem.com

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