Deltic acid or dihydroxycyclopropenone is a chemical substance with the chemical formula C3O(OH)2. It can be viewed as a ketone and double alcohol of cyclopropene. At room temperature, it is a stable white solid, soluble in diethyl ether, that decomposes (sometimes explosively) between 140°C and 180°C, and reacts slowly with water.

CAS：54826-91-4
中文别名：
英文别名：2-Cyclopropen-1-one,2,3-dihydroxy;acide deltique;Deltic acid;Dihydroxy-cyclopropenon;1,2-Dihydroxy-cyclopropenon;Deltasaeure;
分子式：C3H2O3
分子量：86.0462
精确质量：86.0004
Psa：57.53
Logp：-0.1033

密度：2.608g/cm3
沸点：333.333ºC at 760 mmHg
闪点：169.6ºC
折射率：2.023