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Merck

H9003

Hydroquinone

ReagentPlus®, ≥99%

Synonym(s):

1,4-Benzenediol, 1,4-Dihydroxybenzene, HQ

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About This Item

Linear Formula:
C6H4-1,4-(OH)2
CAS Number:
123-31-9
Molecular Weight:
110.11
UNSPSC Code:
12352005
NACRES:
NA.77
PubChem Substance ID:
57654278
EC Number:
204-617-8
Beilstein/REAXYS Number:
605970
MDL number:
MFCD00002339

Product Name

Hydroquinone, ReagentPlus®, ≥99%

InChI key

QIGBRXMKCJKVMJ-UHFFFAOYSA-N

InChI

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

SMILES string

Oc1ccc(O)cc1

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

Quality Level

200

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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.

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.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

329.0 °F - closed cup

flash_point_c

165 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
0000523307
0000523307
0000507663
0000507663
0000499344

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Xenograft of human umbilical mesenchymal stem cells from Wharton?s jelly as a potential therapy for rat pilocarpine-induced epilepsy
Huang PY, et al.
Brain, behavior, and immunity, 54, 45-58 (2016)
Handbook of Cosmetic Science and Technology (2005)
Increased frequency of CpG island methylator phenotype and CDH1 methylation in a gastric cancer high-risk region of china
Zhang KL, et al.
Translational Oncology, 1(1), 28-35 (2008)
Procedures in Cosmetic Dermatology Series: Cosmeceuticals E-Book (2008)
Topical use of hydroquinone as a depigmenting agent
Arndt KA and Fitzpatrick TB
JAMA : The Journal of the American Medical Association, 194(9), 965-967 (1965)
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