P-Benzoquinona 98% - 500 Gr - Sigma
Código: 25431
p-Benzoquinona
reagent grade, ≥98%, powder or crystals
Sinônimo(s):
Quinona
Sobre este item
Fórmula linear:
C6H4(=O)2
Número CAS:
Peso molecular:
108.09
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352005
EC Number:
203-405-2
MDL number:
Beilstein/REAXYS Number:
773967
Assay:
≥98%
Form:
powder or crystals
Nome do produto
p-Benzoquinona, reagent grade, ≥98%
InChI
1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H
InChI key
AZQWKYJCGOJGHM-UHFFFAOYSA-N
SMILES string
O=C1C=CC(=O)C=C1
biological source
synthetic
grade
reagent grade
vapor density
3.73 (vs air)
vapor pressure
0.1 mmHg ( 25 °C)
assay
≥98%
form
powder or crystals
autoignition temp.
815 °F
greener alternative product characteristics
Catalysis
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sustainability
Greener Alternative Product
mp
113-115 °C (lit.)
solubility
water: soluble 14.7 g/L at 20 °C
functional group
ketone
greener alternative category
storage temp.
room temp
Quality Level
Gene Information
human ... ACHE(43), BCHE(590), CES1(1066)
General description
p-Benzoquinone (PBQ) is a cyclic conjugated diketone. Its high-resolution photoelectron spectrum has been reported.[1] The visible and near ultraviolet spectra of PBQ have been recorded and analyzed.[2] Its addition as coagent has been reported to enhance the crosslinking rate of polypropylene initiated by the pyrolysis of peroxides.[3] Its impact on hemoglobin (Hb) has been investigated based on immunoblots and mass spectral analysis of a smoker′s blood.[4]
Free radical inhibitor
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Application
p-Benzoquinone may be used to form benzofuranone derivatives on reacting with anilides of β-aminocrotonic acids via Nenitzescu reaction.[5]
Dienophile employed in Diels-Alder cycloadditions to form naphthoquinones,[6] and 1,4-phenanthrenediones.[7]
Oxidant used in first step of greener amine synthesis from terminal olefins by Wacker oxidation followed by transfer hydrogenation of the resultant imine.

