12309

Supelco

p-Benzoquinone

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

Synonym(s):
Quinone
Linear Formula:
C6H4(=O)2
CAS Number:
Molecular Weight:
108.09
Beilstein/REAXYS Number:
773967
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor density

3.73 (vs air)

vapor pressure

0.1 mmHg ( 25 °C)

assay

≥99.5% (HPLC)

autoignition temp.

815 °F

quality

for spectrophotometric det. of amines

application(s)

UV/Vis spectroscopy: suitable
thin layer chromatography (TLC): suitable

sublimation residue

≤0.1%

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

Signal Word

Danger

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 2587 6.1 / PGII

WGK Germany

WGK 3

Flash Point(F)

170.6 °F - closed cup

Flash Point(C)

77 °C - closed cup

Certificate of Analysis

Certificate of Origin

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)
Spectrophotometric microdetermination of amines and sulfamates with 1,4-Benzoquinone.
G A Benson et al.
Analytical chemistry, 48(14), 2149-2152 (1976-12-01)
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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