Molecular Formula: C₇F₁₆
Molecular Weight: 388.05
EINECS: 206-392-1
Refractive index: 1.3
Flash Point: 16.7 °C
Density: 1.745 g/mL at 25 °C(lit.)
Enthalpy of Vaporization: 31.09 kJ/mol 
Boiling Point: 83.9 °C at 760 mmHg 
Vapour Pressure: 82.6 mmHg at 25°C
IUPAC Name: 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-hexadecafluoroheptane
Synonyms: Hexadecafluoroheptane ; Perfluoro-n-heptane ; Perfluoroheptane ; Perfluoroheptane (mixed isomers) ; Perfluoroheptane(S) ; 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-Hexadecafluoroheptane ; FluorinertPF5070 ; Heptane,hexadecafluoro-
Product Categories: Fluorous Chemistry ; Fluorous Solvents ; Synthetic Organic Chemistry
Following is the molecular structure of Perfluoro-n-heptane (335-57-9):

 Aplications of Perfluoro-n-heptane (335-57-9): Fluorocarbons are hydrocarbon compounds in which fluorine replaces all or some hydrogen atoms and often contains other elements such as bromine, chlorine. Fluorocarbons are inert liquid or gas which are nonflammable, heat-stable, dielectric and virtually non-toxic. It is used as propellants, refrigerants, solvents, air conditioning, lubricants, insulating forms, heat transfer fluids, metal casting, semiconductor industry, fire fighting and in making plastics and resins. Hexadecafluoroheptane is used as a fluoro-tags solvent for separation and purification technique. It is used for the fluoroorganic synthesis and as a heat transfer agent. 
 

Reported in EPA TSCA Inventory.

Low toxicity by intraperitoneal route. Poison by intraperitoneal route. When heated to decomposition it emits very toxic fumes such as F⁻.
Safety Information of Perfluoro-n-heptane (335-57-9):
Hazard Codes: Xi
Xi: Irritant
Risk Statements: 36/37/38
36/37/38: Irritating to eyes, respiratory system and skin 
Safety Statements: 26-36
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing  
WGK Germany: 3
RTECS: MJ0875000
Hazard Note: Irritant