FComEx: Hydroquinone (PC000688)

Record Information

Version

1.0

Creation date

2015-10-09 22:31:57 UTC

Update date

2017-01-19 02:36:33 UTC

FoodComEx ID

PC000688

FoodDB Record

FDB000885

Chemical Information

Name

Hydroquinone

Description

Hydroquinone, also benzene-1,4-diol, is an aromatic organic compound which is a type of phenol, having the chemical formula C6H4(OH)2. Its chemical structure has two hydroxyl groups bonded to a benzene ring in a para position. Hydroquinone is commonly used as a biomarker for benzene exposure. The presence of hydroquinone in normal individuals stems mainly from direct dietary ingestion, catabolism of tyrosine and other substrates by gut bacteria, ingestion of arbutin containing foods, cigarette smoking, and the use of some over-the-counter medicines. Hydroquinone is a white granular solid at room temperature and pressure. The hydroxyl groups of hydroquinone are quite weakly acidic. Hydroquinone can lose an H+ from one of the hydroxyls to form a monophenolate ion or lose an H+ from both to form a diphenolate ion. Hydroquinone has a variety of uses principally associated with its action as a reducing agent which is soluble in water. It is a major component in most photographic developers where, with the compound Metol, it reduces silver halides to elemental silver. [HMDB]. Hydroquinone is found in many foods, some of which are kai-lan, agar, red bell pepper, and jostaberry.

CAS Number

123-31-9

Structure

MOL SDF 3D-SDF PDB SMILES InChI View 3D Structure

Synonyms

Synonym	Source
1,4-Benzenediol	ChEBI
1,4-Dihydroxy-benzeen	HMDB
1,4-Dihydroxy-benzol	HMDB
1,4-Dihydroxybenzen	HMDB
1,4-Dihydroxybenzene	db_source
1,4-Diidrobenzene	HMDB
4-Hydroxyphenol	ChEBI
a-Hydroquinone	HMDB
alpha-Hydroquinone	HMDB
Arctuvin	db_source
b-Quinol	HMDB
Benzene-1,4-diol	ChEBI
Benzohydroquinone	HMDB
Benzoquinol	HMDB
beta-Quinol	HMDB
Dihydroquinone	HMDB
Dihydroxybenzene	HMDB
Eldopaque	db_source
Eldoquin	db_source
Hydrochinon	HMDB
Hydrochinone	HMDB
Hydroquinol	db_source
Hydroquinole	HMDB
Hydroquinone for synthesis	HMDB
Hydroquinone gr	HMDB
Hydroquinone, 8CI, USAN	db_source
Hydroquinoue	HMDB
Idrochinone	HMDB
Melanex	HMDB
P-Benzenediol	ChEBI
P-Dihydroxybenzene	HMDB
P-Dioxobenzene	HMDB
P-Dioxybenzene	HMDB
P-Hydroquinone	ChEBI
P-Hydroxybenzene	HMDB
P-Hydroxyphenol	ChEBI
Phiaquin	HMDB
Pyrogentisic acid	db_source
Pyrogentisinic acid	db_source
Quinol	db_source
Solaquin forte	HMDB

Chemical Formula

C6H6O2

IUPAC name

benzene-1,4-diol

InChI Identifier

InChI=1S/C6H6O2/c7-5-1-2-6(8)4-3-5/h1-4,7-8H

InChI Key

QIGBRXMKCJKVMJ-UHFFFAOYSA-N

Isomeric SMILES

OC1=CC=C(O)C=C1

Average Molecular Weight

110.1106

Monoisotopic Molecular Weight

110.036779436

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as hydroquinones. Hydroquinones are compounds containing a hydroquinone moiety, which consists of a benzene ring with a hydroxyl groups at positions 1 and 4.

Kingdom

Super Class

Class

Sub Class

Direct Parent

Alternative Parents

Substituents