504-31-4 ?????-??????
| ?????? ?? ??? |
?????-?????? |
| ????????? |
2H-????? -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 |
| ??? ??????? ?????? |
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 |
|