| Identification | |
| Name: | 3H-Naphtho[2,1-b]pyran,3,3-diphenyl- |
| Synonyms: | 2,2-Diphenyl-5,6-benzo(2H)chromene;3,3-Diphenyl-3H-naphtho[2,1-b]pyran;Variacrol Yellow L; |
| CAS: | 4222-20-2 |
| Molecular Formula: | C25H18O |
| Molecular Weight: | 334.41 |
| InChI: | InChI=1/C25H18O/c1-3-10-20(11-4-1)25(21-12-5-2-6-13-21)18-17-23-22-14-8-7-9-19(22)15-16-24(23)26-25/h1-18H |
| Molecular Structure: | ![(C25H18O) 2,2-Diphenyl-5,6-benzo(2H)chromene;3,3-Diphenyl-3H-naphtho[2,1-b]pyran;Variacrol Yellow L;](https://img1.guidechem.com/chem/e/dict/62/4222-20-2.jpg) |
| Properties | |
| Melting Point: | 160 ºC |
| Density: | 1.187 g/cm3 |
| Refractive index: | 1.679 |
| Appearance: | Photochromic dye |
| Safety Data | |
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