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Impurities and reference standards

Hydroxyquinone

Also known as 2-Hydroxy-1,4-benzoquinone, 2-Hydroxy-p-benzoquinone, 2-hydroxycyclohexa-2,5-diene-1,4-dione

CAS 2474-72-8Formula C6H4O3Molar mass 124.10 g/mol
1 supplier listed
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Hydroxyquinone chemical structure, C6H4O3, CAS 2474-72-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2474-72-8
Formula
C6H4O3
Molar mass
124.10 g/mol
HS code
291469
Category
Impurities and reference standards

What is Hydroxyquinone?

Plain description, key identifiers and synonyms

2-hydroxy-1,4-benzoquinone is the simplest member of the class of 2-hydroxy-1,4-benzoquinones, that is 1,4-benzoquinone in which a single hydrogen is replaced by a hydroxy group. It has a role as a mouse metabolite. It is a conjugate acid of a 3,6-dioxocyclohexa-1,4-dien-1-olate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-hydroxycyclohexa-2,5-diene-1,4-dione
CAS number
2474-72-8 CAS number cross-checked
Molecular formula
C6H4O3
UNII
C7I5HV2JFI
InChIKey
GPLIMIJPIZGPIF-UHFFFAOYSA-N
InChI
InChI=1S/C6H4O3/c7-4-1-2-5(8)6(9)3-4/h1-3,9H
SMILES (canonical and isomeric)
C1=CC(=O)C(=CC1=O)O

Synonyms

  • 2-Hydroxy-1,4-benzoquinone
  • 2-Hydroxy-p-benzoquinone
  • 2-hydroxycyclohexa-2,5-diene-1,4-dione
  • hydroxy-1,4-benzoquinone
  • Hydroxybenzoquinone
  • Hydroquinone Impurity 10
  • 2,5-Cyclohexadiene-1,4-dione, 2-hydroxy-
  • hydroxy-p-Benzoquinone
  • 4-Hydroxy-o-benzochinon
  • 4-Hydroxycyclohexa-3,5-diene-1,2-dione
  • 4-hydroxy-1, 2-benzoquinone
  • 2-hydroxy-2,5-Cyclohexadiene-1,4-dione

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
124.10 g/molcalc.
Exact mass
124.016 Dacalc.
LogP (octanol/water)
0.14calc.
Topological polar surface area
54.37 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1C=CC(=O)C=C1

O=C1C=CC(=O)C=C1

1 ring, 8 atoms, the Quinone ring system.

738 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Hydroxyquinone suppliers

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Where suppliers are based

1 supplier in 1 country

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Hydroxyquinone price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • eukaryotic metabolite
  • mammalian metabolite
  • metabolite
  • mouse metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Hydroxyquinone is traded under.

HS 2914.69Indicative HS code

Quinones, other

World exports in 2024
$162M
−10.1% vs 2023, imports $157M
2019 to 2024
Top exporters
  1. China32.8%
  2. Netherlands29.3%
  3. Japan13.8%
Top importers
  1. United States23.0%
  2. India * partner reported16.1%
  3. Thailand7.9%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Hydroxyquinone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Hydroxyquinone, based on the data on this page

What is Hydroxyquinone?

2-hydroxy-1,4-benzoquinone is the simplest member of the class of 2-hydroxy-1,4-benzoquinones, that is 1,4-benzoquinone in which a single hydrogen is replaced by a hydroxy group. It has a role as a mouse metabolite. It is a conjugate acid of a 3,6-dioxocyclohexa-1,4-dien-1-olate.

What is the CAS number of Hydroxyquinone?

The CAS registry number of Hydroxyquinone is 2474-72-8.

What is the molecular formula and weight of Hydroxyquinone?

The molecular formula of Hydroxyquinone is C6H4O3 and its molar mass is 124.10 g/mol.

What is Hydroxyquinone used for?

Known uses and roles of Hydroxyquinone include animal metabolite, eukaryotic metabolite, mammalian metabolite, metabolite and mouse metabolite.

Is Hydroxyquinone hazardous?

No GHS hazard classification for Hydroxyquinone is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Hydroxyquinone?

Hydroxyquinone is usually classified under HS code 291469 (Quinones, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Hydroxyquinone?

CompoundList lists 1 supplier of Hydroxyquinone in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Hydroxyquinone?

Suppliers quote Hydroxyquinone on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Hydroxyquinone

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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