| 1 | 234-02-6 | 6H-Thiazolo[5,4-h][1,4]benzothiazine(8CI,9CI) | 6H-Thiazolo[5,4-h][1,4]benzothiazine(8CI,9CI) | C9H6N2S2 | | |
| 2 | 234-03-7 | naphtho[1,2-b]furan | naphtho[1,2-b]furan | C12H8O | | |
| 3 | 234-10-6 | Naphth[2,1-d]oxazole | Naphth[2,1-d]oxazole | C11H7NO | | |
| 4 | 234-15-1 | | Naphtho[1,2-d]-1,3-dioxole (8CI,9CI) | C11H8O2 | | |
| 5 | 234-16-2 | | 1,3-Dioxolo[4,5-f]isoquinoline | C10H7NO2 | | |
| 6 | 234-17-3 | | 1,3-Dioxolo[4,5-h]isoquinoline (8CI,9CI) | C10H7NO2 | | |
| 7 | 234-18-4 | | 1,3-Dioxolo[4,5-f]phthalazine | C9H6N2O2 | | |
| 8 | 234-20-8 | 1,3-Dioxolo[4,5-f]quinoline (8CI,9CI) | 1,3-Dioxolo[4,5-f]quinoline (8CI,9CI) | C10H7NO2 | | |
| 9 | 234-21-9 | 1,3-Dioxolo[4,5-c]quinoline(8CI,9CI) | 1,3-Dioxolo[4,5-c]quinoline(8CI,9CI) | C10H7NO2 | | |
| 10 | 234-25-3 | | Naphth[2,1-d]-1,3-oxathiole (8CI,9CI) | C11H8OS | | |
| 11 | 234-30-0 | | 1,3-Dioxolo[4,5-h]quinazoline (8CI,9CI) | C9H6N2O2 | | |
| 12 | 234-37-7 | | 1,3-Dioxolo[4,5-d]pyrano[3,2-b]pyran (8CI,9CI) | C9H6O4 | | |
| 13 | 234-41-3 | naphtho[1,2-b]thiophene | naphtho[1,2-b]thiophene | C12H8S | | |
| 14 | 234-45-7 | Naphth[2,1-d]isothiazole (8CI,9CI) | Naphth[2,1-d]isothiazole (8CI,9CI) | C11H7NS | | |
| 15 | 234-47-9 | Naphtho[2,1-d]thiazole (8CI,9CI) | Naphtho[2,1-d]thiazole (8CI,9CI) | C11H7NS | | |
| 16 | 234-48-0 | Thiazolo[5,4-f]quinoline (8CI,9CI) | Thiazolo[5,4-f]quinoline (8CI,9CI) | C10H6N2S | | |
| 17 | 234-50-4 | Naphtho[2,1-d]-1,2,3-thiadiazole (8CI,9CI) | Naphtho[2,1-d]-1,2,3-thiadiazole (8CI,9CI) | C10H6N2S | | |
| 18 | 234-57-1 | Thiazolo[5,4-f]quinoxaline (8CI,9CI) | Thiazolo[5,4-f]quinoxaline (8CI,9CI) | C9H5N3S | | |
| 19 | 234-61-7 | Imidazo[5,1-a]isoquinoline | Imidazo[5,1-a]isoquinoline | C11H8N2 | | |
| 20 | 234-64-0 | Pyrazolo[5,1-a]isoquinoline | Pyrazolo[5,1-a]isoquinoline | C11H8N2 | | |
| 21 | 234-68-4 | 2H-Isoxazolo[3,2-a]isoquinoline (8CI,9CI) | 2H-Isoxazolo[3,2-a]isoquinoline (8CI,9CI) | C11H9NO | | |
| 22 | 234-70-8 | Imidazo[2,1-a]isoquinoline | Imidazo[2,1-a]isoquinoline | C11H8N2 | | |
| 23 | 234-72-0 | Imidazo[1,2-c]quinazoline | Imidazo[1,2-c]quinazoline | C10H7N3 | | |
| 24 | 234-77-5 | Tetrazolo[1,5-c]quinazoline | Tetrazolo[1,5-c]quinazoline | C8H5N5 | | |
| 25 | 234-80-0 | s-Triazolo[3,4-α]phthalazine | s-Triazolo[3,4-α]phthalazine | C9H6N4 | | |
| 26 | 234-82-2 | Tetrazolo[5,1-a]phthalazine | Tetrazolo[5,1-a]phthalazine | C8H5N5 | | |
| 27 | 234-85-5 | | Oxazolo[2,3-a]isoquinolinium (8CI,9CI) | C11H8NO | | |
| 28 | 234-95-7 | 吡咯并[1,2-A]喹喔啉 | pyrrolo[1,2-a]quinoxaline | C11H8N2 | | |
| 29 | 234-98-0 | Imidazo[1,5-a]quinoline | Imidazo[1,5-a]quinoline | C11H8N2 | | |