Molecular Structure of 1-Cyclohexylpiperazine (CAS NO.17766-28-8):

IUPAC Name: 1-cyclohexylpiperazine 
Empirical Formula: C₁₀H₂₀N₂
Molecular Weight: 168.2792
H bond acceptors: 2
H bond donors: 1
Freely Rotating Bonds: 1
Polar Surface Area: 6.48 Å²
Index of Refraction: 1.5
Molar Refractivity: 51.07 cm³
Molar Volume: 173.6 cm³
Surface Tension: 35.5 dyne/cm
Density: 0.969 g/cm³
Flash Point: 103.3 °C
Enthalpy of Vaporization: 49.32 kJ/mol
Boiling Point: 255.7 °C at 760 mmHg
Vapour Pressure: 0.016 mmHg at 25°C
Melting point: 28-32 ºC
InChI
InChI=1/C10H20N2/c1-2-4-10(5-3-1)12-8-6-11-7-9-12/h10-11H,1-9H2
Smiles
N1(C2CCCCC2)CCNCC1
EINECS: 241-750-0
Product Categories: Amines and Anilines; Building Blocks; Heterocyclic Building Blocks; Piperazines

Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25-26
S24/25:Avoid contact with skin and eyes. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Hazard Note: Irritant

 1-Cyclohexylpiperazine , with CAS number of 17766-28-8, can be called piperazine, 1-cyclohexyl- ; 1-Cyclohexylpiperazin . It is a yellow-brownish low melting solid.