| CAS登录号 | 中文名 | 英文名 | 分子结构式 | 分子式 | 详情 | 供应商 |
| 108-31-6 | 马来酸酐; 顺丁烯二酸酐; 顺酐 | Maleic anhydride; 2,5-Furandione; MA |  | C4H2O3 | 详情 | 供应商 |
| 31876-38-7 | 1-羟环丁-1-烯-3,4-二酮; 半方形酸 | 3-Cyclobutene-1,2-dione,3-hydroxy-; Cyclobutenedione,hydroxy- (8CI); 1-Hydroxycyclobutene-3,4-dione; 3-Hydroxy-3-cyclobutene-1,2-dione; 3-Hydroxy-3-cyclobutenedione; Hydroxycyclobutenedione; Moniliformin; NSC 292896; Semisquaric acid |  | C4H2O3 | 详情 | 供应商 |
| 56842-75-2 | 3-Butynoic acid, 2-oxo-; 2-Oxo-3-butynoicacid; 2-keto-3-Butynoic acid |  | C4H2O3 | 详情 | 供应商 | |
| 184288-31-1 | furan-2,5-dione; Furan-2,5-dione |  | C4H2O3 | 详情 | 供应商 |
