Cinchomeronic acid
From Wikipedia, the free encyclopedia
 | |
| Names | |
|---|---|
| Preferred IUPAC name
pyridine-3,4-dicarboxylic acid | |
Other names
| |
| Identifiers | |
3D model (JSmol) |
|
| 137242 | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.007.006 |
| EC Number |
|
| 487254 | |
PubChem CID |
|
| UNII | |
CompTox Dashboard (EPA) |
|
| |
| |
| Properties | |
| C7H5NO4 | |
| Molar mass | 167.120 g·mol−1 |
| Appearance | pale yellow crystalline |
| Melting point | 256 °C (493 °F; 529 K) |
| sparingly soluble | |
| Hazards | |
| GHS labelling:[1] | |
 | |
| Warning | |
| H315, H319, H335 | |
| P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501 | |
| Related compounds | |
Related compounds |
|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Cinchomeronic acid is an organic compound with the molecular formula C7H5NO4.[1] The acid was initially isolated by Hugo Weidel in 1868.[2] The compound is one of six isomers of pyridinedicarboxylic acid that are dicarboxylic derivatives of pyridine.[3]
Cinchomeronic acid is obtained as a degradation product of various Cinchona alkaloids. For example, it is obtained from quinine, cinchonidine, cinchonine, and apoquinine using nitric acid or by oxidation of β-collidine, lepidine, or isoquinoline.[4][5]
Cinchomeric acid can also be prepared by oxidation of isoquinoline with potassium permanganate.[6]