| ID | CAS | Name | Molecular Formula | Molecular Weight | Melting Point | Solubility |
|---|---|---|---|---|---|---|
| 1 | 178-10-9 | 3,3'-spirobi[3H-naphtho[2,1-b]pyran] | C25H16O2 | 348.39334 | ||
| 2 | 178-30-3 | Spiro[2H-1-benzopyran-2,2'-[2H][1]benzopyran] | C17H12O2 | 248.28 | 101 °C | |
| 3 | 178-99-4 | 7,14-Dioxadispiro[5.1.5.2]pentadecane (8CI,9CI) | C13H22O2 | 210.31 |