98%
liquid
n20/D 1.423 (lit.)
118-120 °C (lit.)
0.944 g/mL at 25 °C (lit.)
COC(=O)\C=C\C
1S/C5H8O2/c1-3-4-5(6)7-2/h3-4H,1-2H3/b4-3+
MCVVUJPXSBQTRZ-ONEGZZNKSA-N
Danger
Eye Irrit. 2 - Flam. Liq. 2
3 - Flammable liquids