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282960

Sigma-Aldrich

Quinhydrone

97%

Synonym(s):

Hydroquinone: benzoquinone 1:1 complex

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About This Item

Linear Formula:
C6H4(OH)2 · C6H4O2
CAS Number:
Molecular Weight:
218.21
Beilstein/REAXYS Number:
3919222
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

form

powder

composition

Carbon, 63.7-68.4%

mp

167-172 °C (lit.)

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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General description

Quinhydrone/methanol treatment for the measurement of carrier lifetime in crystalline silicon substrates has been reported. Surface passivation of silicon substrates by quinhydrone/ethanol treatment has been investigated.

Application

Quinhydrone is a general reagent used in potentiometric titrations. It can also be used as a π-acceptor in the formation of charge-transfer complex of analytes for spectrophotometric analysis.

pictograms

Skull and crossbonesEnvironment

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Slide 1 of 3

1 of 3

Quinhydrone/methanol treatment for the measurement of carrier lifetime in silicon substrates.
Takato H, et al.
Jpn J. App. Phys., Part I, 41(8A), L870-L870 (2002)
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
Photoinduced electron transfer from porphyrin to C60 in a C60| porphyrin double-layer photoelectrochemical cell.
Takahashi K, et al.
Journal of Electroanalytical Chemistry, 426(1-2), 85-90 (1997)
p-Benzosemiquinone radical anion on silver nanoparticles in water.
Tripathi G N R
Journal of the American Chemical Society, 125(5), 1178-1179 (2003)
[Not Available].
P MARQUARDT et al.
Zeitschrift fur die gesamte innere Medizin und ihre Grenzgebiete, 2(11-12), 333-346 (1947-06-01)

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