丙酮二酸(英語:ketomalonic acid,或称为中草酸,英語:Mesoxalic acid)是结构式为C3H2O5 或 HO−(C=O)3−OH 的有机化合物。丙酮二酸即是一种二羧酸也是一种酮酸,可以失去两个质子形成C
3O2−
5阴离子。中草酸可与水结合形成偕二醇型一水合物,即二羟基丙二酸[2]:
参考文献
- ^ Merck Index 12th. : 5971.
- ^ The chemical structure of caffuric acid was given in Allen, W. F. (1932). The preparation and pyrolytic molecular rearrangment [sic] of the 8-ethers of caffeine: And their conversion to 8-methyl and 8-ethylcaffeine. Ann Arbor, Mich.: Edwards Brothers.