Symbol:	Warning
FW:	253.979
Density:	1.9±0.1 g/cm3
CAS:	17823-40-4
Bolling_Point:	203.7±35.0 °C at 760 mmHg
Product_Name:	4-Bromo-2,3,5,6-tetrafluorobenzonitrile
Melting_Point:	77-79ºC(lit.)
Flash_Point:	77.0±25.9 °C
MF:	C7BrF4N

Molecular_Structure:	['1 . Molar refractive index 3949 ', '2 . Molar volume 1324 ', '3 . Parachor （902K）3334 ', '4 . Surface tension 401 ', '5 . Polarizability 1565 ', '6 . Dielectric constant 未确定']
Flash_Point:	77.0±25.9 °C
Refractive_Index:	1.508
FW:	253.979
Density:	1.9±0.1 g/cm3
Bolling_Point:	203.7±35.0 °C at 760 mmHg
Computational_Chemistry:	['1. XlogP :27 ', '2. Hydrogen Bond Donor Count :0 ', '3. Hydrogen Bond Acceptor Count :5 ', '4. Rotatable Bond Count :0 ', '5. Isotope Atom Count :N/A ', '6. TPSA 238 ', '7. Heavy Atom Count :13 ', '8. Topological Polar Surface Area :0 ', '9. Complexity :224 ', '10. Isotope Atom Count :0 ', '11. Defined Atom Stereocenter Count :0 ', '12. Undefined Atom Stereocenter Count :0 ', '13. Defined Bond Stereocenter Count :0 ', '14. Undefined Bond Stereocenter Count :0 ', '15. Covalently-Bonded Unit Count :1']
LogP:	1.58
Melting_Point:	77-79ºC(lit.)
PSA:	23.79000
MF:	C7BrF4N
More_Info:	['1 . Appearance Unknow ', '2 . Density（g/mL,25℃）Unknow ', '3 . Relative vapor density（g/mL,Atmosphere =1）Unknow ', '4 . Melting point（ºC）770-790 ', '5 . Boiling point（ºC,Atmospheric pressure）Unknow ', '6 . Boiling point（ºC,1hPa）Unknow ', '7 . Refractive indexUnknow ', '8 . Flash point（ºF）Unknow ', '9 . Specific rotation（º）Unknow ', '10 . Spontaneous ignition point or ignition temperature（ºC）Unknow ', '11 . Vapor pressure（211ºC，atm）Unknow ', '12 . Saturated vapor pressure（kPa,60ºC）Unknow ', '13 . Combustion heat（KJ/mol）Unknow ', '14 . Critical temperature（ºC）Unknow ', '15 . Critical pressure（KPa）Unknow ', '16 . Oil-water（Octanol /Water ）Logarithmic Value of Distribution Coefficient Unknow ', '17 . Upper limit of explosion（%,V/V）Unknow ', '18 . Lower limit of explosion（%,V/V）Unknow ', '19 . Solubility Unknow']
Vapor_Pressure:	0.3±0.4 mmHg at 25°C
Exact_Mass:	252.915024

Personal_Protective_Equipment:	dust mask type N95 (US);Eyeshields;Gloves
Hazard_Codes:	Xn: Harmful;Xi: Irritant;
Risk_Statements(EU):	R20/21/22
Safety_Statements:	26-36
Symbol:	Warning
RIDADR:	UN 3276
Warning_Statement:	P261-P280-P305 + P351 + P338