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282960

Quinhydrone

97%

Synonym(s):

Hydroquinone: benzoquinone 1:1 complex

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Size/SKUAvailabilityPrice
25 g
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€41.10
100 g
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€129.00

About This Item

Linear Formula:
C6H4(OH)2 · C6H4O2
CAS Number:
106-34-3
Molecular Weight:
218.21
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24857079
EC Number:
203-387-6
Beilstein/REAXYS Number:
3919222
MDL number:
MFCD00010310
Assay:
97%
Form:
powder

€41.10

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Quality Segment

100

assay

97%

form

powder

composition

Carbon, 63.7-68.4%

mp

167-172 °C (lit.)

functional group

ketone

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

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.[1]

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12361734515634172
Quinhydrone 97%

Sigma-Aldrich

282960

Quinhydrone

Benzo[h]quinoline 97%

Sigma-Aldrich

123617

Benzo[h]quinoline

Silicon tetraacetate 98%

Sigma-Aldrich

345156

Silicon tetraacetate

Triticonazole PESTANAL®, analytical standard

Supelco

34172

Triticonazole

assay

97%

assay

97%

assay

98%

assay

-

Quality Level

100

Quality Level

100

Quality Level

200

Quality Level

100

form

powder

form

solid

form

-

form

-

mp

167-172 °C (lit.)

mp

48-50 °C (lit.)

mp

111-115 °C (lit.)

mp

-

functional group

ketone

functional group

-

functional group

-

functional group

-

composition

Carbon, 63.7-68.4%

composition

-

composition

-

composition

-

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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

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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