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12309

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
UNSPSC Code:
12352005
NACRES:
NA.21
PubChem Substance ID:
329749696
EC Number:
203-405-2
Beilstein/REAXYS Number:
773967
MDL number:
MFCD00001591
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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

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

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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

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

12309-100G:4.548173964973E12 + 12309-25G:4.54817396498E12

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN1119
BCCN0612
BCCN0611
BCCN0169
BCCM6222

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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
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