2,3-Dihydroxybenzoic acid

2,3-Dihydroxybenzoic acid
Names
	Preferred IUPAC name 2,3-Dihydroxybenzoic acid
	Other names Hypogallic acid; 2-Pyrocatechuic acid; o-Pyrocatechuic acid;
Identifiers
CAS Number	303-38-8 ;
3D model (JSmol)	Interactive image; Interactive image;
Abbreviations	2,3-DHBA; 2,3-DHB;
ChEBI	CHEBI:18026 ;
ChEMBL	ChEMBL1432 ;
ChemSpider	18 ;
DrugBank	DB01672 ;
ECHA InfoCard	100.005.582
KEGG	C00196 ;
PubChem CID	19;
UNII	70D5FBB392 ;
CompTox Dashboard (EPA)	DTXSID70858712 ;
	InChI InChI=1S/C7H6O4/c8-5-3-1-2-4(6(5)9)7(10)11/h1-3,8-9H,(H,10,11) Key: GLDQAMYCGOIJDV-UHFFFAOYSA-N ; InChI=1/C7H6O4/c8-5-3-1-2-4(6(5)9)7(10)11/h1-3,8-9H,(H,10,11) Key: GLDQAMYCGOIJDV-UHFFFAOYAE;
	SMILES O=C(O)c1cccc(O)c1O; c1cc(c(c(c1)O)O)C(=O)O;
Properties
Chemical formula	C7H6O4
Molar mass	154.121 g·mol−1
Appearance	Colorless solid
Density	1.542 g/cm3 (20 °C)
Melting point	205 °C (401 °F; 478 K)
Solubility in water	soluble
Solubility in ethanol	soluble
Solubility in diethyl ether	soluble
Solubility in acetone	soluble
Related compounds
Related compounds	2,4-Dihydroxybenzoic acid; 2,5-Dihydroxybenzoic acid; 2,6-Dihydroxybenzoic acid; 3,4-Dihydroxybenzoic acid; 3,5-Dihydroxybenzoic acid;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

2,3-Dihydroxybenzoic acid is a dihydroxybenzoic acid, a type of organic compound. It occurs naturally in various plants, bacteria, and fungi.