| 1 | 220-00-8 | Dibenzo[c,e]selenepin | Dibenzo[c,e]selenepin | | | |
| 2 | 220-06-4 | Dibenz[b,d]oxepin | Dibenz[b,d]oxepin | | | |
| 3 | 220-07-5 | Dibenzo[b,d]thiepin | Dibenzo[b,d]thiepin | | | |
| 4 | 220-316-4 | | 4,4'-DIAZIDOSTILBENE-2,2'-DISULFONIC ACID DISODIUM SALT TETRAHYDRATE | C14H16N6Na2O10S2 | | |
| 5 | 220-42-8 | anthracene transannular peroxide | anthracene transannular peroxide | C14H8O2 | | |
| 6 | 220-49-5 | 4,9-Ethenonaphtho[2,3-c]furan (8CI,9CI) | 4,9-Ethenonaphtho[2,3-c]furan (8CI,9CI) | C14H8O | | |
| 7 | 220-579-5 | 2,5-二甲基苯并硒唑 | 2,5-DIMETHYLBENZOSELENAZOLE | C9H9NSe | | |
| 8 | 220-77-9 | naphtho[1,2-b]chrysene | naphtho[1,2-b]chrysene | C26H16 | | |
| 9 | 220-82-6 | | Naphtho[2,1-a]naphthacene | C26H16 | | |
| 10 | 220-97-3 | 11H-indeno[2,1-a]phenanthrene | 11H-indeno[2,1-a]phenanthrene | C21H14 | | |