B10358

p-Benzochinon

reagent grade, ≥98%

• Synonym(e): Chinon
• Lineare Formel: C₆H₄(=O)₂
• CAS-Nummer: 106-51-4
• Molekulargewicht: 108.09
• Beilstein: 773967
• EG-Nummer: 203-405-2
• MDL-Nummer: MFCD00001591
• UNSPSC-Code: 12352005
• PubChem Substanz-ID: 57653913
• NACRES: NA.21

Eigenschaften

• Biologische Quelle: synthetic
• Qualitätsniveau: 200
• Qualität: reagent grade
• Dampfdichte: 3.73 (vs air)
• Dampfdruck: 0.1 mmHg ( 25 °C)
• Assay: ≥98%
• Form: powder or crystals
• Selbstzündungstemp.: 815 °F
• Grünere Alternativprodukt-Eigenschaften: Catalysis; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• mp (Schmelzpunkt): 113-115 °C (lit.)
• Löslichkeit: water: soluble 14.7 g/L at 20 °C
• Funktionelle Gruppe: ketone
• Grünere Alternativprodukt-Kategorie: Aligned
• Lagertemp.: room temp
• SMILES String: O=C1C=CC(=O)C=C1
• InChI: 1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H
• InChIKey: AZQWKYJCGOJGHM-UHFFFAOYSA-N
• Angaben zum Gen: human ... ACHE(43) , BCHE(590) , CES1(1066)

Beschreibung

Allgemeine Beschreibung

Free radical inhibitor

p-Benzoquinone (PBQ) is a cyclic conjugated diketone. Its high-resolution photoelectron spectrum has been reported. The visible and near ultraviolet spectra of PBQ have been recorded and analyzed. Its addition as coagent has been reported to enhance the crosslinking rate of polypropylene initiated by the pyrolysis of peroxides. Its impact on hemoglobin (Hb) has been investigated based on immunoblots and mass spectral analysis of a smoker′s blood.

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Anwendung

Dienophile employed in Diels-Alder cycloadditions to form naphthoquinones, and 1,4-phenanthrenediones.

p-Benzoquinone may be used to form benzofuranone derivatives on reacting with anilides of β-aminocrotonic acids via Nenitzescu reaction.

Oxidant used in first step of greener amine synthesis from terminal olefins by Wacker oxidation followed by transfer hydrogenation of the resultant imine.

Formal anti-Markovnikov hydroamination of terminal olefins

Sicherheitshinweise

• Piktogramme: GHS02,GHS06,GHS08,GHS05,GHS09
• Signalwort: Danger
• H-Sätze: H228,H301 + H331,H314,H317,H335,H341,H410
• P-Sätze: P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: 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
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 4.1B - Flammable solid hazardous materials
• WGK: WGK 3
• Flammpunkt (°F): 170.6 °F - closed cup
• Flammpunkt (°C): 77 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges