| 1 | 260-21-9 | 5H-Dibenzo[c,h][1,2,5,7,6]dithiadiazaphosphonine | C12H9N2PS2 | 276.32 | | |
| 2 | 260-23-1 | Acridarsine (8CI,9CI) | C13H9As | 240.13 | | |
| 3 | 260-24-2 | Phenarsazine | C12H8AsN | 241.12 | | |
| 4 | 260-27-5 | Dibenzo[b,e][1,4]phospharsenin (8CI,9CI) | C12H8AsP | 258.09 | | |
| 5 | 260-30-0 | 10H-Phenoxaborin | C12H9BO | 180.01 | 232-233.5 °C | |
| 6 | 260-32-2 | Benz[g]isoquinoline | C13H9N | 179.22 | | |
| 7 | 260-35-5 | Benzo[g]phthalazine | C12H8N2 | 180.21 | | |
| 8 | 260-36-6 | Benzo[g]quinoline | C13H9N | 179.21726 | 114°C | |
| 9 | 260-37-7 | Benzo[g]cinnoline(8CI,9CI) | C12H8N2 | 180.20532 | | |
| 10 | 260-47-9 | 4H-Naphtho2,3-d-1,3,2-dioxathiin | C11H8O2S | 204.24 | | |
| 11 | 260-50-4 | Benzo[g]quinoxaline | C12H8N2 | 180.205 | | |
| 12 | 260-58-2 | Naphtho[2,3-b]-1,4-dithiin (9CI) | C12H8S2 | 216.32 | | |
| 13 | 260-62-8 | 4,5-Didehydro-4H-benzo[b]quinolizine-5-ium | | | | |
| 14 | 260-63-9 | Pyridazino[4,5-g]phthalazine | C10H6N4 | 182.18 | | |
| 15 | 260-64-0 | 1,4-Dioxino[2,3-g]phthalazine (9CI) | C10H6N2O2 | 186.17 | | |
| 16 | 260-66-2 | Benzo[1,2-e:5,4-e']bis[1,2]azaborine (8CI,9CI) | C10H6B2N2 | 175.79 | | |
| 17 | 260-67-3 | Pyrido[3,2-g]quinoline(8CI,9CI) | C12H8N2 | 180.21 | | |
| 18 | 260-69-5 | Pyrido[2,3-g]quinoline | C12H8N2 | 180.21 | | |
| 19 | 260-75-3 | pyriMido[4,5-g]quinazoline | C10H6N4 | 182.18 | | |
| 20 | 260-86-6 | Benzo[1,2-b:4,5-b']dipyran (8CI,9CI) | C12H8O2 | 184.19 | | |
| 21 | 260-92-4 | 10H-Dibenz[b,e]iodinium | C13H10I+ | 293.13 | | |
| 22 | 260-93-5 | Arsenino[4,3-b]quinoline (8CI,9CI) | C12H8AsN | 241.12 | | |
| 23 | 260-94-6 | Acridine | C13H9N | 179.22 | 106-109°C | 57.35mg/L(24 ºC) |
| 24 | 260-95-7 | Benzo[b][1,7]naphthyridine | C12H8N2 | 180.20532 | | |
| 25 | 260-99-1 | Phosphorino[4,3-b]quinoline (8CI,9CI) | C12H8NP | 197.17 | | |