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Isocitrate

Isocitric acid
Isocitric acid.svg
Names
IUPAC name
1-Hydroxypropane-1,2,3-tricarboxylic acid
Identifiers
320-77-4 YesY
3D model (Jmol) Interactive image
ChEBI CHEBI:30887 YesY
ChEMBL ChEMBL539669 YesY
ChemSpider 1161 YesY
DrugBank DB01727 N°
ECHA InfoCard 100.005.713
KEGG C00311 YesY
MeSH Isocitrate
PubChem 1198
Properties
C6H8O7
Molar mass 192.124
Melting point 105 °C (221 °F; 378 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YesYN ?)
Infobox references

Isocitric acid is a structural isomer of citric acid. Salts and esters of isocitric acid are known as isocitrates. The isocitrate anion is a substrate of the citric acid cycle. Isocitrate is formed from citrate with the help of the enzyme aconitase, and is acted upon by isocitrate dehydrogenase.

Isocitric acid is commonly used as a marker to detect the authenticity and quality of fruit products, most often citrus juices. In authentic orange juice, for example, the ratio of citric acid to D-isocitric acid is usually less than 130. An isocitric acid value higher than this may be indicative of fruit juice adulteration.

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