3-Hydroxyanthranilic acid
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| Skeletal formula of 3-hydroxyanthranilic acid | |
| Ball-and-stick model of the 3-hydroxyanthranilic acid molecule as a zwitterion | |
| Names | |
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| IUPAC name
2-Amino-3-hydroxybenzoic acid
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| Identifiers | |
548-93-6  |
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| ChEBI | CHEBI:15793  |
| ChEMBL | ChEMBL445304 |
| ChemSpider | 84 |
| DrugBank | DB03644 |
| Jmol 3D model | Interactive image Interactive image |
| KEGG | C00632 |
| MeSH | 3-Hydroxyanthranilic+Acid |
| PubChem | 86 |
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| Properties | |
| C7H7NO3 | |
| Molar mass | 153.14 g·mol−1 |
| Appearance | powder |
| Density | ≈ 1 g/cm3 |
| Melting point | 240–265 °C (464–509 °F; 513–538 K)[3] decomposes 227 °C (441 °F; 500 K)[2] from dilute HCl, decomposes |
| partially soluble[1] | |
| Solubility | soluble in ether, CHCl3, alcohols[1] |
| Solubility in hydrochloric acid | 1 N:[1] 1 g/100 ml |
| Acidity (pKa) | at 20 °C:[2] 1 = 2.7, 2 = 5.19, 3 = 10.12 |
| UV-vis (λmax) | 298 nm[2] |
| Vapor pressure | {{{value}}} |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 verify (what is ?) |
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| Infobox references | |
3-Hydroxyanthranilic acid is an intermediate in the metabolism of tryptophan. It's new antioxidant isolated from methanol extract of tempeh. It's effective in preventing autoxidation of soybean oil and powder, while antioxidant 6,7,4‘-trihydroxyisoflavone isn't.[4]
References
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- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
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External links
- HAA concentration graph in lyophilized tempeh powder extract (Indonesian)
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