Chemical Name: 2,3,5,6-Tetrafluorobenzonitrile
IUPAC NAME: 2,3,5,6-tetrafluorobenzonitrile
CAS No.: 5216-17-1
Molecular Formula: C₇HF₄N
Molecular Weight: 175.08 g/mol
Melting Point: 33-36 °C(lit.)
Density: 1.46 g/cm³ 
Flash Point: 70 °C
Boiling Point: 172 °C at 760 mmHg 
Following is the structure of 2,3,5,6-tetrafluorobenzonitrile (5216-17-1):

              
Product Categories about 2,3,5,6-tetrafluorobenzonitrile (5216-17-1) are C6 to C7 ; Cyanides/Nitriles ; Nitrogen Compounds
The chemical synonymous of 2,3,5,6-tetrafluorobenzonitrile (5216-17-1) are 2,3,5,6-TETRAFLUOROBENZONITRILE ; 2,3,5,6-Tetrafluorobenzonitrile,98%

Hazard Note: Irritant
Hazard Codes:
    Xn: Harmful 
    Xn: Irritant
Risk Statements about 2,3,5,6-tetrafluorobenzonitrile (5216-17-1):
    R20/21/22 Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements about 2,3,5,6-tetrafluorobenzonitrile (5216-17-1):
    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: 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. Personal Protection: Eyes: Wear chemical splash goggles.Skin: Wear appropriate protective gloves to prevent skin exposure.Clothing: Wear appropriate protective clothing to prevent skin exposure.Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
4. Fire Fighting: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustible solid.Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam.