Lingwu, Yinchuan, Ningxia, China sales2@sinochem-nanjing.com 3170906422@qq.com
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Alpha-Naphtholphthalein

    Specifications

    HS Code

    353009

    Cas Number 388-45-2
    Molecular Formula C28H20O4
    Molecular Weight 420.46 g/mol
    Appearance Green to greenish-black powder
    Melting Point 230-234°C
    Solubility In Water Slightly soluble
    Color Change Ph Range 8.0 to 10.0
    Color In Acidic Solution Colorless to faintly pink
    Color In Alkaline Solution Green
    Boiling Point Decomposes before boiling
    Synonyms 1-Naphtholphthalein; Alpha-naphthol phthalein
    Storage Conditions Store in a cool, dry, well-ventilated place
    Pubchem Cid 9289

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

    Packing & Storage
    Packing The packaging for Alpha-Naphtholphthalein contains 25 grams of fine, dark-green powder sealed in a labeled amber glass bottle.
    Storage Alpha-Naphtholphthalein should be stored in a tightly sealed container, placed in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizing agents. Protect it from light, moisture, and excessive heat. Clearly label the container and ensure it is kept out of reach of unauthorized personnel. Follow all relevant chemical storage safety guidelines.
    Shipping Alpha-Naphtholphthalein is shipped in tightly sealed containers, typically made of glass or compatible plastics, to prevent moisture and contamination. Packages are clearly labeled with hazard information, handled according to local regulations, and transported in compliance with applicable chemical safety guidelines to ensure safe delivery. Store in a cool, dry place upon arrival.
    Free Quote

    Competitive Alpha-Naphtholphthalein prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615380400285

    Email: sales2@sinochem-nanjing.com