Cyclopropenone is an organic compound with molecular formula C3H2O consisting of a cyclopropene carbon framework with a ketone functional group. It is a colorless gas. The chemical properties of the compound are dominated by the strong polarization of the carbonyl group, which gives a partial positive charge with aromatic stabilization on the ring and a partial negative charge on oxygen.

CAS：2961-80-0
中文别名：2-环丙烯-1-酮;
英文别名：Cyclopropenone;1-cycloprop-2-enone;Cycloprop-1-en-3-on;InChI=1/C3H2O/c4-3-1-2-3/h1-2;2-Cyclopropen-1-one;Cyclopropenon;2-cyclopropene-1-one;
分子式：C3H2O
分子量：54.0474
精确质量：54.0106
Psa：17.07
Logp：0.1253

密度：1.256g/cm3
沸点：106.2ºC at760mmHg
闪点：18.2ºC
折射率：1.543
蒸汽压：28.6mmHg at 25°C

海关编码：2914299000