Hydroxyquinol

Hydroxyquinol

Names
IUPAC name benzene-1,2,4-triol
Other names Hydroxyhydroquinone Oxyhydroquinone 1,2,4-Benzenetriol 1,2,4-Trihydroxybenzene Benzene-1,2,4-triol 4-Hydroxycatechol 2,5-Dihydroxyphenol 1,3,4-Benzenetriol 1,3,4-Trihydroxybenzene
Identifiers
CAS Number	533-73-3 Y=
3D model (Jmol)	Interactive image
ChEBI	CHEBI:16971 Y
ChemSpider	10331 Y
ECHA InfoCard	100.007.797
KEGG	C02814 Y
PubChem CID	10787
InChI InChI=1S/C6H6O3/c7-4-1-2-5(8)6(9)3-4/h1-3,7-9H Y Key: GGNQRNBDZQJCCN-UHFFFAOYSA-N Y InChI=1/C6H6O3/c7-4-1-2-5(8)6(9)3-4/h1-3,7-9H Key: GGNQRNBDZQJCCN-UHFFFAOYAX
SMILES Oc1cc(O)c(O)cc1
Properties
Chemical formula	C6H6O3
Molar mass	126.11 g/mol
Appearance	white solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

Hydroxyquinol is an organic compound with the formula C6H3(OH)3. It is one of three isomeric benzenetriols. The compound is a colorless solid that is soluble in water. It reacts with air to give a black insoluble solid.

It is prepared industrially by acetylation of paraquinone with acetic anhydride followed by hydrolysis of the triacetate.

Historically hydroxyquinol was produced by the action of potassium hydroxide on hydroquinone. It can also be prepared by dehydrating fructose.

Hydroxyquinol commonly occurs in nature as a biodegradation product of catechin, a natural phenol found in plants such as Bradyrhizobium japonicum. Hydroxyquinol is also a metabolite in some organisms. For instance, Hydroxyquinol 1,2-dioxygenase is an enzyme that uses hydroxyquinol as a substrate with oxygen to produce 3-hydroxy-cis,cis-muconate.