| Product Name | Alpha-Naphtholphthalein |
| CAS No. | 596-01-0 |
| Synonyms | 1-Naphtholphthalein |
| InChI | InChI=1/C28H18O4/c29-25-15-13-23(17-7-1-3-9-19(17)25)28(22-12-6-5-11-21(22)27(31)32-28)24-14-16-26(30)20-10-4-2-8-18(20)24/h1-16,29-30H |
| Molecular Formula | C28H18O4 |
| Molecular Weight | 418.4401 |
| Density | 1.404g/cm3 |
| Melting point | 238-240℃ |
| Boiling point | 705.6°C at 760 mmHg |
| Flash point | 247°C |
| Refractive index | 1.769 |
| Hazard Symbols |  Xi:Irritant; |
| Risk Codes | R36/37/38:; |
| Safety | S26:; S36:; |
596-01-0 alpha-naphtholphthalein
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