© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
|
HS Code |
222836 |
| Chemical Name | α-Naphtholphthalein |
| Cas Number | 509-82-0 |
| Molecular Formula | C28H18O4 |
| Molecular Weight | 418.45 g/mol |
| Appearance | Green to dark green powder |
| Melting Point | 261-262°C |
| Solubility | Slightly soluble in water, soluble in alcohol and ether |
| Ph Indicator Range | 7.3 (colorless) to 8.7 (blue) |
| Boiling Point | Decomposes before boiling |
| Application | Used as a pH indicator |
| Stability | Stable under normal conditions |
| Odor | Odorless |
| Synonyms | Alpha-Naphtholphthalein; 3,3-bis(α-naphthol)phthalein |
As an accredited α-Naphtholphthalein factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging for α-Naphtholphthalein (Sigma Aldrich, analytical grade) typically includes a 25-gram amber glass bottle with hazard labeling. |
| Shipping | α-Naphtholphthalein (Sigma Aldrich/Merck/TCI Chemical Grade) is shipped in tightly sealed containers to protect against moisture and light, in compliance with safety regulations. Packaging ensures chemical stability during transit. Accompanied by detailed safety and handling documents, shipment follows all relevant hazardous material transportation guidelines for secure delivery. |
| Storage | α-Naphtholphthalein (Sigma Aldrich/Merck/TCI Chemical Grade) should be stored in a tightly sealed container, protected from light and moisture, in a cool, dry, well-ventilated area. Avoid exposure to incompatible substances, such as strong oxidizers. Store at room temperature and always follow manufacturer guidelines and local chemical safety regulations for handling and long-term storage. |
Competitive α-Naphtholphthalein prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@ar-reagent.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: sales3@ar-reagent.com
Flexible payment, competitive price, premium service - Inquire now!
