Chemical Name: 2,4,5,6-Tetrafluoroisophthalonitrile
IUPAC NAME: 2,4,5,6-Tetrafluorobenzene-1,3-dicarbonitrile
CAS No.: 2377-81-3
Molecular Formula: C₈F₄N₂
Molecular Weight: 200.09 g/mol
Melting Point: 78-79 °C(lit.)
Density: 1.54 g/cm³ 
Flash Point: 82.3 °C
Boiling Point: 212.5 °C at 760 mmHg
Following is the structure of 2,4,5,6-Tetrafluoroisophthalonitrile (2377-81-3):

Product Categories about 2,4,5,6-Tetrafluoroisophthalonitrile (2377-81-3) are C8 to C9 ; Cyanides/Nitriles ; Nitrogen Compounds
The chemical synonymous of 2,4,5,6-Tetrafluoroisophthalonitrile (2377-81-3) are 2,4,5,6-Tetrafluorobenzene-1,3-dicarbonitrile ; 2,4,5,6-Tetrafluoroisophthalonitrile ; 1,3-Dicyanotetrafluorobenzene ; Perfluoroisophthalonitrile ; Tetrafluoroisophthalonitrile ; Tetrafluoroisophthalonitrile,97% ; Tetrafluoroisophthalonitrile 98%

Hazard Note: Irritant
Hazard Codes:
    Xn: Harmful 
    Xi: Irritant
Risk Statements about 2,4,5,6-Tetrafluoroisophthalonitrile (2377-81-3):
    R20/21/22 Harmful by inhalation, in contact with skin and if swallowed. 
    R36/37/38 Irritating to eyes, respiratory system and skin. 
Safety Statements about 2,4,5,6-Tetrafluoroisophthalonitrile (2377-81-3):
    S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
    S36/37/39 Wear suitable protective clothing, gloves and eye/face protection.

1. Storage: Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container.
2. Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
3. Fire Fighting: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Combustible solid.Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam.