| CAS登录号 | 中文名 | 英文名 | 分子结构式 | 分子式 | 详情 | 供应商 |
| 255-30-1 | Pyrano[3,2-b]pyran(8CI,9CI); 1,5-Dioxanaphthalene |  | C8H6O2 | 详情 | 供应商 | |
| 255-01-6 | Pyrimido[4,5-e]-1,2,4-triazine(9CI); Pyrimido[4,5-e]-as-triazine(7CI,8CI); 6-Azapteridine |  | C5H3N5 | 详情 | 供应商 | |
| 255-53-8 | Pyrazino[2,3-b]pyrazine; 1,4,5,8-Tetraazanaphthalene; NSC 129591 |  | C6H4N4 | 详情 | 供应商 | |
| 255-82-3 | Pyrido[1,2-a]pyrimidin-5-ium(8CI,9CI); 1-Azaquinolizinium; 1-Azaquinolizinium cation |  | C8H7N2+ | 详情 | 供应商 | |
| 255-37-8 | 1,4-Benzodioxin |  | C8H6O2 | 详情 | 供应商 | |
| 255-17-4 | 2H-1,4-Benzothiazine(8CI,9CI); 1,4-Benzothiazine |  | C8H7NS | 详情 | 供应商 | |
| 255-80-1 | 4H-Pyrido[1,2-a]pyrimidine; Homopyrimidazole |  | C8H8N2 | 详情 | 供应商 | |
| 255-85-6 | 4H,6H-Pyrido[1,2-c][1,3,5]oxadiazine; 4H,6H-Pyrido1,2-c1,3,5oxadiazine |  | C7H8N2O | 详情 | 供应商 | |
| 255-12-9 | 5H-Pyrimido[4,5-b][1,4]oxazine; 5H-[1,4]Oxazino[2,3-d]pyrimidine |  | C6H5N3O | 详情 | 供应商 | |
| 255-13-0 | 7H-Pyrimido[4,5-b][1,4]oxazine; 7H-[1,4]Oxazino[2,3-d]pyrimidine; 8-Oxadihydropteridine |  | C6H5N3O | 详情 | 供应商 | |
| 255-54-9 | [1,4]dioxino[2,3-b][1,4]dioxin |  | C6H4O4 | 详情 | 供应商 |
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