| 1 | 159-03-5 | Trispiro[benzofuran-2(3H),1'-cyclohexane-2',2'':4',2'''-bis[1,3]dioxolane] (8CI,9CI) | C17H20O5 | 304.34 | | |
| 2 | 159-07-9 | Dispiro[benzofuran-2(3H),1'-cyclohexane-2',2''-[1,3]dioxolane] (8CI,9CI) | C15H18O3 | 246.3 | | |
| 3 | 159-41-1 | Spiro[bicyclo[2.2.1]heptane-7,1'-cyclopropane] (9CI) | C9H14 | 122.21 | | |
| 4 | 159-43-3 | 3b,7b[3',4']-Furanotribenzo[de,h,kl]naphtho[1,2,3,4-rst]pentaphene (8CI,9CI) | C42H22O | 542.62 | | |
| 5 | 159-45-5 | 14b,18b[3',4']-Furanotetrabenzo[de,h,kl,rst]pentaphene (8CI,9CI) | C38H20O | 492.56 | | |
| 6 | 159-49-9 | 9,9'-Spirobi[9H-xanthene] | C25H16O2 | 348.39 | 283-284 °C | |
| 7 | 159-62-6 | Spiro[fluorene-9,9'-xanthene] | C25H16O | 332.39 | 212-213 °C | |
| 8 | 159-64-8 | 5λ5-5,5'-Spirobi[5H-benz[b]arsindole] (9CI) | C24H17As | 380.31 | | |
| 9 | 159-66-0 | 9,9'-Spirobifluorene | C25H16 | 316.39 | 202 °C | Soluble in common organic solvents. Slightly soluble in water. |
| 10 | 159-68-2 | 5,5'-spirobi[dibenzo[b,d]silole] | C24H16Si | 332.46934 | 230 to 234 °C | |
| 11 | 159-69-3 | 5,5'-Spirobi[5H-dibenzostannole] | C24H16Sn | 423.09 | | |