IUPAC Name: [(3R)-2,2,3,4,4,4-Hexafluorobutyl] 2-methylprop-2-enoate 
Following is the structure of 2,2,3,4,4,4-Hexafluorobutyl methacrylate (CAS NO.36405-47-7):
                   
Empirical Formula: C₈H₈F₆O₂
Molecular Weight: 250.1383 g/mol
Molar Refractivity: 41.32 cm³
Molar Volume: 192.1 cm³
Density: 1.301 g/cm³
Flash Point: 56.7 °C
Sensitive: Lachrymatory
Index of Refraction: 1.349
Surface Tension: 19.7 dyne/cm
Enthalpy of Vaporization: 40.5 kJ/mol
Boiling Point: 168.6 °C at 760 mmHg
Vapour Pressure: 1.61 mmHg at 25 °C
Product Categories: monomer; C8 to C9Monomers; Fluorine-Containing Monomers for 157 nm UV Lithography Resist PolymersPhotonic and Optical Materials; Low Refractive Index Monomers; Acrylic Monomers; Carbonyl Compounds; Esters; Fluorinated AcrylicsSelf Assembly&Contact Printing; Lithography Monomers; Waveguide Materials
Storage tempreture: 0-6 °C
Canonical SMILES: CC(=C)C(=O)OCC(C(C(F)(F)F)F)(F)F
Isomeric SMILES: CC(=C)C(=O)OCC([C@H](C(F)(F)F)F)(F)F
InChI: InChI=1S/C8H8F6O2/c1-4(2)5(15)16-3-7(10,11)6(9)8(12,13)14/h6H,1,3H2,2H3/t6-/m1/s1
InChIKey: DFVPUWGVOPDJTC-ZCFIWIBFSA-N

 2,2,3,4,4,4-Hexafluorobutyl methacrylate (CAS NO.36405-47-7) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. And the toxicological properties have not been fully investigated.

Hazard Codes: Xi,F
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-27-36/37/39-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S27:Take off immediately all contaminated clothing. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S37/39:Wear suitable gloves and eye/face protection.
RIDADR: UN 3272 3/PG 3
WGK Germany: 3
Hazard Note: Lachrymatory
HazardClass: 3
PackingGroup: III

 2,2,3,4,4,4-Hexafluorobutyl methacrylate , its cas register number is 36405-47-7. It also can be called 2,2,3,4,4,4-Hexafluorobutyl 2-methylacrylate ; and 2-propenoic acid, 2-methyl-, 2,2,3,4,4,4-hexafluorobutyl ester . 
 2,2,3,4,4,4-Hexafluorobutyl methacrylate (CAS NO.36405-47-7) could be stable under normal temperatures and pressures. However, it is light sensitive and heat sensitive. It should avoid the condition like incompatible materials,  light, ignition sources, heat. It is also not compatible with strong oxidizing agents, strong reducing agents, strong acids, strong bases. And also prevent it to broken down into hazardous decomposition products: carbon monoxide, carbon dioxide, hydrogen fluoride gas. However, its hazardous polymerization has not been reported. In addition, it should be kept away from heat, sparks, and flame, and kept away from sources of ignition, also should be kept refrigerated. (Store below 4°C/39°F.) While, it should be stored in a tightly closed container or stored in a dry area. Store protected from light.