Tricarboxylic acid
{{short description|Organic carboxylic acid}}
{{More citations needed|date=October 2015}}
A tricarboxylic acid is an organic carboxylic acid that contain three carboxyl functional groups (−COOH). A well-known example is citric acid.
==Promient examples==
| class="wikitable"
! Common name !! IUPAC name !! Molecular formula !! Structural formula | |||
| citric acid | 2-hydroxypropane-1,2,3-tricarboxylic acid | C6H8O7 | File:Zitronensäure - Citric acid.svg |
| isocitric acid | 1-hydroxypropane-1,2,3-tricarboxylic acid | C6H8O7 | File:isocitric acid.svg |
| aconitic acid | prop-1-ene-1,2,3-tricarboxylic acid | C6H6O6 | File:Cis-aconitic acid.pngFile:Trans-aconitic acid.png
(cis-form and trans-form) |
| propane-1,2,3-tricarboxylic acid | propane-1,2,3-tricarboxylic acid | C3H5(COOH)3 | File:CarballylicA.png |
| agaric acid | 2-hydroxynonadecane-1,2,3-tricarboxylic acid | C22H40O7 | 250px |
| trimesic acid | benzene-1,3,5-tricarboxylic acid | C9H6O6{{cite book |doi=10.1002/14356007.a05_249 |chapter=Carboxylic Acids, Aromatic |title=Ullmann's Encyclopedia of Industrial Chemistry |date=2000 |last1=Röhrscheid |first1=Freimund |isbn=978-3-527-30385-4 }} | File:1,3,5-Tricarboxybenzol.svg |
Some prominent substituted tricarboxylic acids
Citric acid, is used in the citric acid cycle{{dash}}also known as the tricarboxylic acid (TCA) cycle or Krebs cycle{{dash}}which is fundamental to all aerobic organisms.
Image:Nitrilotriacetic-acid-2D-skeletal.png
Nitrilotriacetic acid (NTA) is a chelating agent for Ca2+, Co2+, Cu2+, and Fe3+.{{Ullmann | year=2022|doi=10.1002/14356007.a17_377.pub3 |title = Nitrilotriacetic Acid |first1= Thomas |last1=Schmidt |first2=Charalampos |last2=Gousetis |first3=Hans-Joachim |last3=Opgenorth}}
See also
- Citric acid cycle (tricarboxylic acid cycle)
- Dicarboxylic acid
- Mellitic acid
References
{{Reflist}}
Literature
- {{cite journal |title = The Tricarboxylic Acid Cycle, an Ancient Metabolic Network with a Novel Twist. |author = Ryan J. Mailloux, Robin Bériault, Joseph Lemire, Ranji Singh, Daniel R. Chénier, Robert D. Hamel, Vasu D. Appanna |year = 2007 |journal = PLOS ONE |volume = 2 |issue = 8 |pages = e690 |doi = 10.1371/journal.pone.0000690 |pmid = 17668068 |pmc = 1930152 |bibcode = 2007PLoSO...2..690M |doi-access = free}}