| 1 | 269-02-3 | | Cyclopenta[b][1]benzothiopyran (6CI,7CI,8CI,9CI) | C12H8S | | |
| 2 | 269-07-8 | 1H-Naphth[2,3-d]imidazole(8CI,9CI) | 1H-Naphth[2,3-d]imidazole(8CI,9CI) | C11H8N2 | | |
| 3 | 269-08-9 | 1H-Imidazo[4,5-g]quinoline(8CI,9CI) | 1H-Imidazo[4,5-g]quinoline(8CI,9CI) | C10H7N3 | | |
| 4 | 269-10-3 | 1H-Imidazo[4,5-g]quinoxaline(8CI,9CI) | 1H-Imidazo[4,5-g]quinoxaline(8CI,9CI) | C9H6N4 | | |
| 5 | 269-12-5 | 1H-naphtho(2,3-d)triazole | 1H-naphtho(2,3-d)triazole | C10H7N3 | | |
| 6 | 269-15-8 | 2H-1,2,3-Triazolo[4,5-g]quinoxaline | 2H-1,2,3-Triazolo[4,5-g]quinoxaline | C8H5N5 | | |
| 7 | 269-16-9 | Naphth[2,3-c][1,2,5]oxadiazole (7CI,8CI,9CI) | Naphth[2,3-c][1,2,5]oxadiazole (7CI,8CI,9CI) | C10H6N2O | | |
| 8 | 269-20-5 | | Naphtho[2,3-c][1,2,5]selenadiazole | C10H6N2Se | | |
| 9 | 269-24-9 | Naphtho[2,3-d]thiazole (8CI,9CI) | Naphtho[2,3-d]thiazole (8CI,9CI) | C11H7NS | | |
| 10 | 269-25-0 | Thiazolo[4,5-g]quinoline (8CI,9CI) | Thiazolo[4,5-g]quinoline (8CI,9CI) | C10H6N2S | | |
| 11 | 269-26-1 | 8H-Thiopyrano[3,2-f]benzothiazole(8CI,9CI) | 8H-Thiopyrano[3,2-f]benzothiazole(8CI,9CI) | C10H7NS2 | | |
| 12 | 269-27-2 | Thiazolo[5,4-g]quinoline (8CI,9CI) | Thiazolo[5,4-g]quinoline (8CI,9CI) | C10H6N2S | | |
| 13 | 269-28-3 | Thiazolo[4,5-g]quinoxaline (8CI,9CI) | Thiazolo[4,5-g]quinoxaline (8CI,9CI) | C9H5N3S | | |
| 14 | 269-29-4 | 5H-Thiazolo[4,5-g][1,4]benzothiazine(8CI,9CI) | 5H-Thiazolo[4,5-g][1,4]benzothiazine(8CI,9CI) | C9H6N2S2 | | |
| 15 | 269-30-7 | 6H-Thiopyrano[2,3-f]benzothiazole(8CI,9CI) | 6H-Thiopyrano[2,3-f]benzothiazole(8CI,9CI) | C10H7NS2 | | |
| 16 | 269-43-2 | 2H-naphtho[2,3-d][1,3]dioxole | 2H-naphtho[2,3-d][1,3]dioxole | C11H8O2 | | |
| 17 | 269-44-3 | [1,3]DIOXOLO[4,5-G]ISOQUINOLINE | [1,3]DIOXOLO[4,5-G]ISOQUINOLINE | C10H7NO2 | | |
| 18 | 269-48-7 | | 1,3-Dioxolo[4,5-g][2]benzopyrylium (9CI) | C10H7O3 | | |
| 19 | 269-50-1 | | 1,3-Dioxolo[4,5-g]phthalazine | C9H6N2O2 | | |
| 20 | 269-51-2 | 1,3-Dioxolo[4,5-g]quinoline | 1,3-Dioxolo[4,5-g]quinoline | C10H7NO2 | | |
| 21 | 269-53-4 | | [1,3]Dioxolo[4,5-g]quinazoline | C9H6N2O2 | | |
| 22 | 269-56-7 | 1,3-Dioxolo[4,5-g]quinoxaline (9CI) | 1,3-Dioxolo[4,5-g]quinoxaline (9CI) | C9H6N2O2 | | |
| 23 | 269-66-9 | 4H-Cyclopenta[b]quinoxaline | 4H-Cyclopenta[b]quinoxaline | C11H8N2 | | |
| 24 | 269-67-0 | 1H-Cyclopenta[b]quinoxaline (8CI,9CI) | 1H-Cyclopenta[b]quinoxaline (8CI,9CI) | C11H8N2 | | |
| 25 | 269-70-5 | 2H-Pyrrolo[3,4-b]quinoxaline | 2H-Pyrrolo[3,4-b]quinoxaline | C10H7N3 | | |
| 26 | 269-71-6 | Furo[3,4-b]quinoxaline (8CI,9CI) | Furo[3,4-b]quinoxaline (8CI,9CI) | C10H6N2O | | |
| 27 | 269-72-7 | Thieno[3,4-b]quinoxaline | Thieno[3,4-b]quinoxaline | C10H6N2S | | |
| 28 | 269-73-8 | 2H-Pyrrolo[2,3-b]quinoxaline | 2H-Pyrrolo[2,3-b]quinoxaline | C10H7N3 | | |
| 29 | 269-74-9 | 1H-Pyrrolo[2,3-b]quinoxaline (8CI,9CI) | 1H-Pyrrolo[2,3-b]quinoxaline (8CI,9CI) | C10H7N3 | | |
| 30 | 269-75-0 | | 1H-Pyrazolo[3,4-b]quinoxaline | C9H6N4 | | |
| 31 | 269-77-2 | Furo[2,3-b]quinoxaline (8CI,9CI) | Furo[2,3-b]quinoxaline (8CI,9CI) | C10H6N2O | | |
| 32 | 269-85-2 | 2H-1,2,3-Triazolo[4,5-b]quinoxaline | 2H-1,2,3-Triazolo[4,5-b]quinoxaline | C8H5N5 | | |
| 33 | 269-86-3 | Oxazolo[4,5-b]quinoxaline (8CI,9CI) | Oxazolo[4,5-b]quinoxaline (8CI,9CI) | C9H5N3O | | |