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Merck
CN

V800213

Hydroquinone

≥99%, Vetec™, LR grade

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:
41116107
PubChem Substance ID:
329828929
EC Number:
204-617-8
Beilstein/REAXYS Number:
605970
MDL number:
MFCD00002339

Key Documents

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Product Name

Hydroquinone, LR, ≥99%

InChI

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

InChI key

QIGBRXMKCJKVMJ-UHFFFAOYSA-N

SMILES string

Oc1ccc(O)cc1

grade

LR

vapor density

3.81 (vs air)

vapor pressure

1 mmHg ( 132 °C)

product line

Vetec™

assay

≥99%

autoignition temp.

930 °F

bp

285 °C (lit.)

mp

172-175 °C (lit.)

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Legal Information

Vetec is a 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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BGBC1384V
BGBC0879V
BGBB9700

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Yaqi Hu et al.
Biosensors & bioelectronics, 47, 45-49 (2013-04-03)
A novel light "on-off" photoelectrochemical sensing for the sensitive determination of hydroquinone was developed based on the porphyrin-functionalized Au nanoparticles on graphene (porphyrin/AuNPs/graphene). Gold nanoparticles (AuNPs) were firstly modified onto graphene sheets using NaBH4 as reductant and the porphyrin/AuNPs/graphene nanocomposites
P Carbonnelle et al.
Toxicology and applied pharmacology, 132(2), 220-226 (1995-06-01)
Decreased interleukin-1 (IL-1) production by mononuclear phagocytes has been shown to contribute to benzene myelotoxicity in animals. The study presented here was designed to examine the relevance of this mechanism in humans. Fresh human blood monocytes were exposed to 0.001-10
A P DeCaprio
Critical reviews in toxicology, 29(3), 283-330 (1999-06-24)
Hydroquinone (HQ) is a high-volume commodity chemical used as a reducing agent, antioxidant, polymerization inhibitor, and chemical intermediate. It is also used in over-the-counter (OTC) drugs as an ingredient in skin lighteners and is a natural ingredient in many plant-derived
Douglas McGregor
Critical reviews in toxicology, 37(10), 887-914 (2007-11-21)
The toxicology of hydroquinone has been reviewed on a number of previous occasions. This review targets its potential for carcinogenicity and possible modes of carcinogenic action. The evaluation made by IARC (1999) of its carcinogenic risk to humans was that
Xia Cao et al.
Analytica chimica acta, 752, 101-105 (2012-10-30)
Ultrathin crystalline CdSe nanosheets have been synthesized through a facile solution processes. Their application to simultaneous electrochemical determination of catechol and hydroquinone is demonstrated. The few-layer single crystalline CdSe modified electrode exhibits strong electrocatalytic activity toward the oxidation of a
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