2,6-Dihydroxybenzoic acid

2,6-Dihydroxybenzoic acid
Names

IUPAC name 2,6-dihydroxybenzoic acid
Other names gamma-Resorcylic acid 2-Carboxyresorcinol 2,6-Resorcylic acid
Identifiers
CAS Number	303-07-1^N=
3D model (JSmol)	Interactive image
ChemSpider	8974^Y
ECHA InfoCard	100.005.578
PubChem CID	9338
InChI InChI=1S/C7H6O4/c8-4-2-1-3-5(9)6(4)7(10)11/h1-3,8-9H,(H,10,11)^Y Key: AKEUNCKRJATALU-UHFFFAOYSA-N^Y
SMILES C1=CC(=C(C(=C1)O)C(=O)O)O
Properties
Chemical formula	C₇H₆O₄
Molar mass	154.12 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references

2,6-Dihydroxybenzoic acid (γ-resorcylic acid) is a dihydroxybenzoic acid. Very strong acid due to intramolecular hydrogen bonding.

References

Phenolic acids (C6-C1) and their glycosides

Glycosides	p-Hydroxybenzoic acid glucoside
Acetylated	Methylparaben (Methyl p-hydroxybenzoic acid)

Acetylated	Ethyl protocatechuate Orsellinic acid

Glycosides	Bergenin Norbergenin Theogallin Chebulic acid
Acetylated	Ethyl gallate Eudesmic acid Methyl gallate Syringic acid

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