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12309

Supelco

p-Benzoquinone

for spectrophotometric det. of amines, ≥99.5% (HPLC)

Synonym(s):

Quinone

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About This Item

Linear Formula:
C6H4(=O)2
CAS Number:
106-51-4
Molecular Weight:
108.09
Beilstein/REAXYS Number:
773967
EC Number:
203-405-2
MDL number:
MFCD00001591
UNSPSC Code:
12352005
PubChem Substance ID:
329749696
NACRES:
NA.21

vapor density

3.73 (vs air)

Quality Level

200

vapor pressure

0.1 mmHg ( 25 °C)

assay

≥99.5% (HPLC)

form

powder or crystals

autoignition temp.

815 °F

quality

for spectrophotometric det. of amines

technique(s)

UV/Vis spectroscopy: suitable

sublimation residue

≤0.1%

color

, Faint Yellow to Very Dark Yellow to Very Dark Beige and Green-Yellow

mp

112-114 °C
113-115 °C (lit.)

SMILES string

O=C1C=CC(=O)C=C1

InChI

1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H

InChI key

AZQWKYJCGOJGHM-UHFFFAOYSA-N

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Application

P-Benzoquinone along with tetrathiafulvalene (TTF) was used as mediators, in an experimental study based on different parameters affecting the preparation of enzyme electrochemical biosensors using self-assembled monolayer (SAM)-modified electrodes is reported. It may be used for spectrophotometric determination of cysteine and/or carbocysteine in a mixture of amino acids, shampoo, and pharmaceutical. It may also be used as an effective cogent in peroxide-initiated crosslinking of polypropylene.

Other Notes

Reagent for the spectrophotometric microdetermination of amines

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Flam. Sol. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

4.1B - Flammable solid hazardous materials

wgk_germany

WGK 3

flash_point_f

170.6 °F - closed cup

flash_point_c

77 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL5799
BCCL9875
BCCK1089
BCCJ0460
BCCK8390

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Spectrophotometric microdetermination of amines and sulfamates with 1,4-Benzoquinone.
G A Benson et al.
Analytical chemistry, 48(14), 2149-2152 (1976-12-01)
Peroxide-initiated crosslinking of polypropylene in the presence of p-benzoquinone.
Chodak I and Lazar M.
Journal of Polymer Science: Part A, General Papers, 32 (6), 5432-5437 (1986)
D A Zaia et al.
Talanta, 50(5), 1003-1010 (2008-10-31)
A simple, sensitive, and selective method has been developed for determination of cysteine (Cys) or carbocysteine (carboCys) in pharmaceutical products, shampoos and a mixture of amino acids. The results showed the reaction between p-benzoquinone (PBQ) and Cys occurs through the
Preparation, characterization and application of alkanethiol self-assembled monolayers modified with tetrathiafulvalene and glucose oxidase at a gold disk electrode.
Campuzano S
Journal of Electroanalytical Chemistry, 526 (1), 92-100 (2002)
Rozbeh Baradaran et al.
Nature, 494(7438), 443-448 (2013-02-19)
Complex I is the first and largest enzyme of the respiratory chain and has a central role in cellular energy production through the coupling of NADH:ubiquinone electron transfer to proton translocation. It is also implicated in many common human neurodegenerative
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