MilliporeSigma
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H9003

Sigma-Aldrich

Hydroquinone

ReagentPlus®, ≥99%

Synonym(s):
1,4-Benzenediol, HQ, 1,4-Dihydroxybenzene
Linear Formula:
C6H4-1,4-(OH)2
CAS Number:
Molecular Weight:
110.11
Beilstein:
605970
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.77

Quality Level

biological source

synthetic

vapor density

3.81 (vs air)

vapor pressure

1 mmHg ( 132 °C)

product line

ReagentPlus®

assay

≥99%

form

powder

autoignition temp.

930 °F

bp

285 °C (lit.)

mp

172-175 °C (lit.)

solubility

water: 50 mg/mL, clear

SMILES string

Oc1ccc(O)cc1

InChI

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

InChI key

QIGBRXMKCJKVMJ-UHFFFAOYSA-N

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General description

Hydroquinone is a phenolic compound, which is naturally found in coffee, tea and wine. It is used in photographic, chemical and cosmetic industries. Hydroquinone is used as a skin lightening agent. It is topically applied to treat melisma, freckles and senile lentigines. Hydroquinone is linked to exogenous ochronosis, dermatitis and skin irritation. It inhibits melanogenesis.

Application

Hydroquinone has been used as reagent for the conversion of DNA by sodium bisulfite. It has also been used as a chemical in Timm′s staining.

Packaging

1 kg in poly bottle
100, 500 g in poly bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Eye Dam. 1 - Muta. 2 - Skin Sens. 1

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

329.0 °F - closed cup

Flash Point(C)

165 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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