504-31-4 ????-?????
| ?? ????? |
????-????? |
| ?????? |
2H-Pyran-2-???; 2-????????; 2H-?????-2-??? |
| ?? ????? |
alpha-Pyrone;2H-Pyran-2-one; 2-Pyranone; 2H-Pyrane-2-one |
| ????????? ??????? |
C5H4O2 |
| ???? ???????? |
96.0841 |
| InChI |
InChI=1/C5H4O2/c6-5-3-1-2-4-7-5/h1-4H |
| ???? CAS |
504-31-4 |
| EINECS |
207-990-5 |
| ???? ???????? |
|
| ?????? |
1.192g/cm3 |
| ????? ????? |
207.5°C at 760 mmHg |
| ???? ????? |
1.507 |
| ????? ???? |
89.2°C |
| ??? ???? |
0.225mmHg at 25°C |
|