Iminodiacetic acid
Names | |
---|---|
IUPAC name
2-(Carboxymethylamino)acetic acid | |
Other names
Diglycolamidic acid | |
Identifiers | |
878499 | |
142-73-4 | |
ChEBI | CHEBI:24786 |
ChEMBL | ChEMBL461164 |
ChemSpider | 8557 |
EC number | 205-555-4 |
| |
Jmol-3D images | Image Image |
KEGG | C19911 |
MeSH | imnodiacetic+acid |
PubChem | 8897 |
RTECS number | AI2975000 |
| |
Properties | |
Molecular formula |
C4H7NO4 |
Molar mass | 133.10 g·mol−1 |
Appearance | Colourless crystals |
Density | 1.436 g mL−1 |
log P | 1.84 |
Acidity (pKa) | 1.873 |
Basicity (pKb) | 12.124 |
Thermochemistry | |
Std enthalpy of formation (ΔfH |
−933.9–−931.3 kJ mol−1 |
Std enthalpy of combustion (ΔcH |
−1.6430–−1.6406 MJ mol−1 |
Hazards | |
GHS pictograms | |
GHS signal word | WARNING |
H315, H319, H335 | |
P261, P305+351+338 | |
EU classification | Xi |
R-phrases | R36/37/38 |
S-phrases | S26, S36 |
Flash point | 178 °C (352 °F; 451 K) |
Related compounds | |
Related alkanoic acids |
|
Related compounds |
N-Acetylglycinamide |
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
verify (what is: / ?) | |
Infobox references | |
Iminodiacetic acid, HN(CH2CO2H)2, often abbreviated to IDA, is a dicarboxylic acid amine (note that the nitrogen atom forms a secondary amino group, not an imino group as the name suggests). The iminodiacetate anion can act as a tridentate ligand to form a metal complex with two, fused, five membered chelate rings.[1] The proton on the nitrogen atom can be replaced by a carbon atom of a polymer to create an ion-exchange resin, such as chelex 100.
IDA forms stronger complexes than the bidentate ligand glycine and weaker complexes than the tetradentate ligand nitrilotriacetic acid.
By capillary electrophoresis IDA is typically used for modulating peptide mobility.
See also
- HIDA scan
References
- ↑ Schwarzenbach, G (1952). "Der Chelateffekt". Helv. Chim. Acta 35 (7): 2344–2359. doi:10.1002/hlca.19520350721.