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844-51-9

Basic Information
CAS No.: 844-51-9
Name: 2,5-DIPHENYL-P-BENZOQUINONE
Article Data: 21
Molecular Structure:
Molecular Structure of 844-51-9 (2,5-DIPHENYL-P-BENZOQUINONE)
Formula: C18H12 O2
Molecular Weight: 260.292
Synonyms: Quinone,2,5-diphenyl- (3CI); p-Benzoquinone, 2,5-diphenyl- (6CI,7CI,8CI);2,5-Diphenyl-1,4-benzoquinone; 2,5-Diphenyl-p-benzoquinone; NSC 8725; StearerDPQ
EINECS: 212-680-8
Density: 1.237 g/cm3
Melting Point: 215-217°C
Boiling Point: 457.9 °C at 760 mmHg
Flash Point: 170.5 °C
Appearance: bright yellow powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-37
PSA: 34.14000
LogP: 3.30540
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Chemistry

The Molecular Structure of  2,5-Cyclohexadiene-1,4-dione,2,5-diphenyl- (CAS NO.844-51-9) is

Cas Register Number: 844-51-9
IUPAC Name:  2,5-Diphenylcyclohexa-2,5-diene-1,4-dione
Synonyms:  2,5-Diphenyl-4-benzoquinone ; 2,5-Diphenyl-1,4-benzoquinone ; 2,5-Diphenyl-p-benzoquinone ; 2,5-Cyclohexadiene-1,4-dione, 2,5-diphenyl- ; 2,5-Diphenyl-p-benzoquinone ; p-Benzoquinone, 2,5-diphenyl- (8CI)
Molecular formula: C18H12O2
Molecular weight: 0.286680g/mol 
Product Categories: Anthraquinones, Hydroquinones and Quinones;Benzoquinones 
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 2
Polar Surface Area: 34.14 Å2
Index of Refraction: 1.642
Molar Refractivity: 76.01 cm3
Molar Volume: 210.3 cm3
Surface Tension: 52.5 dyne/cm
Density: 1.237 g/cm
Flash Point: 170.5 °C
Enthalpy of Vaporization: 71.81 kJ/mol
Boiling Point: 457.9 °C at 760 mmHg
Vapour Pressure of  2,5-Cyclohexadiene-1,4-dione,2,5-diphenyl- (CAS NO.844-51-9): 1.43E-08 mmHg at 25°C 

Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37: Wear suitable gloves.
HazardClass: IRRITANT