Indole-3-acetic acid
| Names | |
|---|---|
| Preferred IUPAC name
(1H-Indol-3-yl)acetic acid | |
| Other names
Indole-3-acetic acid, indolylacetic acid, 1H-Indole-3-acetic acid, indoleacetic acid, heteroauxin, IAA | |
| Identifiers | |
CAS Number |
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3D model (JSmol) |
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| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| DrugBank | |
| ECHA InfoCard | 100.001.590 |
| EC Number |
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Gmelin Reference |
143197 |
| KEGG | |
PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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SMILES
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| Properties | |
Chemical formula |
C10H9NO2 |
| Molar mass | 175.187 g·mol−1 |
| Appearance | White solid |
| Melting point | 168 to 170 °C (334 to 338 °F; 441 to 443 K) |
Solubility in water |
insoluble in water. Soluble in ethanol to 50mg/mL |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Indole-3-acetic acid (IAA, 3-IAA) is the most common naturally occurring plant hormone of the auxin class. It is the best known of the auxins, and has been the subject of extensive studies by plant physiologists. IAA is a derivative of indole, containing a carboxymethyl substituent. It is a colorless solid that is soluble in polar organic solvents.