Molecular structure of 1,1,2,2-Tetrahydroperfluoro dodecanol (CAS NO.865-86-1) is:

Product Name: 1,1,2,2-Tetrahydroperfluoro dodecanol
CAS Registry Number: 865-86-1
IUPAC Name: 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-Henicosafluorododecan-1-ol
Molecular Weight: 564.133967 [g/mol]  
Molecular Formula: C₁₂H₅F₂₁O  
XLogP3-AA: 7.1  
H-Bond Donor: 1  
H-Bond Acceptor: 22
EINECS: 212-748-7
Melting Point: 95 °C
Index of Refraction: 1.294 
Molar Refractivity: 62.27 cm³ 
Molar Volume: 339 cm³
Surface Tension: 15.8 dyne/cm 
Density: 1.664 g/cm³ 
Flash Point: 88.3 °C 
Enthalpy of Vaporization: 53.36 kJ/mol 
Boiling Point: 222.4 °C at 760 mmHg 
Vapour Pressure: 0.0208 mmHg at 25 °C 
Product Categories: Organics
Canonical SMILES: C(CO)C(C(C(C(C(C(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F
InChI: InChI=1S/C12H5F21O/c13-3(14,1-2-34)4(15,16)5(17,18)6(19,20)7(21,22)8(23,24)9(25,26)10(27,28)11(29,30)12(31,32)33/h34H,1-2H2 
InChIKey: FLXYIZWPNQYPIT-UHFFFAOYSA-N

Safty information about 1,1,2,2-Tetrahydroperfluoro dodecanol (CAS NO.865-86-1) is:
Hazard Codes: F
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
Hazard Note: Flammable
TSCA: T

 1,1,2,2-Tetrahydroperfluoro dodecanol , its cas register number is 865-86-1. It also can be called 1-Dodecanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-heneicosafluoro- ;  3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-Henicosafluorododecanol .