丙酮二酸

丙酮二酸（英語：，或称为中草酸，英語：）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]:

丙酮二酸[1]
IUPAC名
oxopropanedioic acid
别名 Ketomalonic acid
Oxomalonic acid
α-Ketomalonic acid
2-Oxopropanedioic acid
识别
CAS号 473-90-5  checkY
PubChem 10132
ChemSpider 9727
SMILES
 
  • O=C(O)C(=O)C(=O)O
InChI
 
  • 1/C3H2O5/c4-1(2(5)6)3(7)8/h(H,5,6)(H,7,8)
InChIKey XEEVLJKYYUVTRC-UHFFFAOYAW
ChEBI 30842
DrugBank DB03589
KEGG C00830
性质
化学式 C3H2O5
摩尔质量 118.04 g·mol−1
若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

参考文献
  1. 12th. : 5971.
  2. 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.
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