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Merck
CN

22590

Quinhydrone

puriss.

Synonym(s):

Hydroquinone: benzoquinone 1:1 complex

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About This Item

Linear Formula:
C6H4(OH)2 · C6H4O2
CAS Number:
106-34-3
Molecular Weight:
218.21
EC Number:
203-387-6
UNSPSC Code:
12352100
PubChem Substance ID:
329752328
Beilstein/REAXYS Number:
3919222
MDL number:
MFCD00010310

Key Documents

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grade

puriss.

composition

benzoquinone, ~50% HPLC , hydroquinone, ~50% HPLC

mp

167-172 °C

SMILES string

Oc1ccc(O)cc1.O=C2C=CC(=O)C=C2

InChI

1S/C6H6O2.C6H4O2/c2*7-5-1-2-6(8)4-3-5/h1-4,7-8H;1-4H

InChI key

BDJXVNRFAQSMAA-UHFFFAOYSA-N

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wgk

WGK 3

flash_point_f

Not applicable

pictograms

Skull and crossbonesEnvironment
GHS06,GHS09

signalword

Danger

hcodes

H301,H400

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Regulatory Information

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Cheng Zhao et al.
Journal of the American Society for Mass Spectrometry, 16(3), 409-416 (2005-03-01)
The influence of a number of redox reagents on the charge state distribution in nanoelectrospray mass spectrometry was examined using cytochrome c and ubiquitin. The redox active species investigated were: 1,4-benzoquinone, quinhydrone, tetracyanoquinodimethane (TCNQ), hydroquinone, and ascorbic acid. The redox
Luigi Falciola et al.
Annali di chimica, 92(10), 945-954 (2002-12-20)
The rationale for the extension of the rH-metric standardization and measurements to aqueous-organic solvent mixtures is here introduced, and examples of establishment of the ranges of conventional rH-metric scales as well as primary standards rHs in some typical aqueous-organic solvent
The effect of the hydrogen ion concentration upon the salt error of the quinhydrone electrode.
J L GABBARD
Journal of the American Chemical Society, 69(3), 533-536 (1947-03-01)
[Not Available].
P MARQUARDT et al.
Zeitschrift fur die gesamte innere Medizin und ihre Grenzgebiete, 2(11-12), 333-346 (1947-06-01)
F D'Souza et al.
The Journal of organic chemistry, 66(13), 4601-4609 (2001-06-26)
Free-base and zinc(II) porphyrins bearing either one, two, or four hydroquinone entities at the meso positions are shown to bind quinones in solutions via a quinhydrone pairing mechanism. Electrochemical studies reveal that the quinhydrone complexes are stabilized by charge-transfer interactions
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