CASµÇ¼ºÅ | ÖÐÎÄÃû | Ó¢ÎÄÃû | ·Ö×ӽṹʽ | ·Ö×Óʽ | ÏêÇé | ¹©Ó¦ÉÌ |
504-31-4 | ¦Á-ßÁà«Íª; 2Çâ-ßÁà«-2ͪ; 2H-ßÁà«-2-ͪ; ¦¡-ßßà«Íª; éŸñRì`; ¦¡-ßßà«Íª; ß߆U | 2H-Pyran-2-one; 1,2-Pyrone(4CI); 2,4-Pentadienoic acid, 5-hydroxy-, d-lactone; 2-Pyranone; 2-Pyrone; 2H-Pyran, 2-oxo-; Coumalin; a-Pyrone | ![]() | C5H4O2 | ÏêÇé | ¹©Ó¦ÉÌ |