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Chemical compound From Wikipedia, the free encyclopedia
2,4-Dihydroxybenzoic acid (β-resorcylic acid) is a dihydroxybenzoic acid.
Names | |
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Preferred IUPAC name
2,4-Dihydroxybenzoic acid | |
Other names
β-Resorcylic acid β-Resorcinolic acid p-Hydroxysalicylic acid 2,4-DHBA | |
Identifiers | |
3D model (JSmol) |
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ChEBI | |
ChEMBL | |
ChemSpider | |
DrugBank | |
ECHA InfoCard | 100.001.770 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C7H6O4 | |
Molar mass | 154.12 g/mol |
Melting point | 229 °C (444 °F; 502 K)[1] |
Acidity (pKa) | 3.11, 8.55, 14.0[2] |
Hazards | |
GHS labelling:[3] | |
Warning | |
H315, H319, H335 | |
P261, P280, P302+P352, P305+P351+P338 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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As a resorcylic acid, it is one of the three isomeric crystalline acids that are both carboxyl derivatives of resorcinol and dihydroxy derivatives of benzoic acid.[4] Synthesis from resorcinol is via the Kolbe-Schmitt reaction.[5]
It is a degradation product of cyanidin glycosides from tart cherries in cell cultures.[6] It is also a metabolite found in human plasma after cranberry juice consumption.[7]
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