Collidinic acid

Collidinic acid
Names
	Preferred IUPAC name Pyridine-2,4,6-tricarboxylic acid
	Other names 2,4,6-Pyridinetricarboxylic acid
Identifiers
CAS Number	536-20-9 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL1321223;
ChemSpider	306468;
PubChem CID	345552;
UNII	BD2YV5DB4G ;
CompTox Dashboard (EPA)	DTXSID40323169 ;
	InChI InChI=1S/C8H5NO6/c10-6(11)3-1-4(7(12)13)9-5(2-3)8(14)15/h1-2H,(H,10,11)(H,12,13)(H,14,15) Key: CHGYKYXGIWNSCD-UHFFFAOYSA-N;
	SMILES C1=C(C=C(N=C1C(=O)O)C(=O)O)C(=O)O;
Properties
Chemical formula	C8H5NO6
Molar mass	211.129 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Collidinic acid^[1]^[2] (pyridine-2,4,6-tricarboxylic acid) is an organic compound that belongs to the heterocycles (more precisely the heteroaromatics). It belongs to the group of pyridinetricarboxylic acids and consists of a pyridine ring which carries three carboxy groups in the 2-, 4- and 6-positions. The name is derived from 2,4,6-collidine (2,4,6-trimethylpyridine).

Preparation[edit]

The compound can be obtained from the oxidation of 2,4,6-collidine by potassium permanganate.^[3]

Uses[edit]

Collidinic acid can be used in the spectrophotometric determination of iron.^[4]

References[edit]

^ B. Chatterjee: Donor properties of pyridine carboxylic acids: chromium(III) complexes, in: Journal of Inorganic and Nuclear Chemistry, Band 43, Nr. 10, 1981, S. 2553–2555; doi:10.1016/0022-1902(81)80300-4.
^ Raymond L. Richards: Vanadium: Inorganic & Coordination Chemistry, in: Encyclopedia of Inorganic and Bioinorganic Chemistry, 2011; doi:10.1002/9781119951438.eibc0236.
^ Zhu, Hong-Lin; Xu, Wei; Wang, Jian-Fei; Zheng, Yue-Qing (2012). "Synthesis, crystal structures and properties of two supramolecular polymers constructed by lanthanide with pyridine-2,4,6-tricarboxylic acid". Synthetic Metals. 162 (13–14): 1327–1334. doi:10.1016/j.synthmet.2012.05.016.
^ Pyridine and its derivatives. Supplement. Part Three. R. A. Abramovitch. New York: John Wiley & Sons. 1974. p. 298. ISBN 978-0-470-18822-4. OCLC 506484960.{{cite book}}: CS1 maint: others (link)

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[1] B. Chatterjee: Donor properties of pyridine carboxylic acids: chromium(III) complexes, in: Journal of Inorganic and Nuclear Chemistry, Band 43, Nr. 10, 1981, S. 2553–2555; doi:10.1016/0022-1902(81)80300-4.

[2] Raymond L. Richards: Vanadium: Inorganic & Coordination Chemistry, in: Encyclopedia of Inorganic and Bioinorganic Chemistry, 2011; doi:10.1002/9781119951438.eibc0236.

[3] Zhu, Hong-Lin; Xu, Wei; Wang, Jian-Fei; Zheng, Yue-Qing (2012). "Synthesis, crystal structures and properties of two supramolecular polymers constructed by lanthanide with pyridine-2,4,6-tricarboxylic acid". Synthetic Metals. 162 (13–14): 1327–1334. doi:10.1016/j.synthmet.2012.05.016.

[4] Pyridine and its derivatives. Supplement. Part Three. R. A. Abramovitch. New York: John Wiley & Sons. 1974. p. 298. ISBN 978-0-470-18822-4. OCLC 506484960.{{cite book}}: CS1 maint: others (link)

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