Synonyms: Quinone
CAS Number: 106-51-4
Formula: C6H4O2
Formula Weight: 108.09
Linear Formula: C6H4(=O)2
MDL No.: MFCD00001591
Purity: >=98%
Melting Point: 113-115 C (lit.)
Beilstein Registry Number: 773967
EC Number: 203-405-2
UNSPSC Code: 12352005
General description: 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.
General description: Free radical inhibitor
Application: 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
Application: p-Benzoquinone may be used to form benzofuranone derivatives on reacting with anilides of β-aminocrotonic acids via Nenitzescu reaction.
Application: Dienophile employed in Diels-Alder cycloadditions to form naphthoquinones, and 1,4-phenanthrenediones.
RTECS: DK2625000
RIDADR: UN 2587 6.1 / PGII
WGK Germany: 3
R Codes: 23/25-36/37/38-50
S Codes: 26-28-45-61
IOD Codes: T,N
Symbol: GHS06, GHS09
Signal Word: Danger
Hazard Statements: H301 + H331-H315-H319-H335-H410
Precautionary statements: P261-P273-P301 + P310 + P330-P304 + P340 + P312-P403 + P233-P501