The 4-Fluoro-phenylpiperazine, with the CAS registry number 2252-63-3 and EINECS registry number 218-846-6, has the systematic name of 1-(4-fluorophenyl)piperazine. It is a kind of  clear yellowish liquid after melting, and belongs to the following product categories: Nitrogen cyclic compounds; Piperidines, Piperidones, Piperazines; Piperaizine; API intermediates; Building Blocks; Heterocyclic Building Blocks. And the molecular formula of the chemical is C₁₀H₁₃FN₂. What's more, it is always used as a catalyst and intermediate.

The physical properties of 4-Fluoro-phenylpiperazine are as followings: (1)ACD/LogP: 1.20; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.6; (4)ACD/LogD (pH 7.4): -0.02; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 6.44; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 6.48 Å²; (13)Index of Refraction: 1.527; (14)Molar Refractivity: 49.79 cm³; (15)Molar Volume: 161.9 cm³; (16)Polarizability: 19.74×10^-24cm³; (17)Surface Tension: 35.8 dyne/cm; (18)Density: 1.112 g/cm³; (19)Flash Point: 137.8 °C; (20)Enthalpy of Vaporization: 60.97 kJ/mol; (21)Boiling Point: 363.6 °C at 760 mmHg; (22)Vapour Pressure: 1.78E-05 mmHg at 25°C.

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin, and it is also harmful by inhalation, in contact with skin and if swallowed. Therefore, you had better take the following instructions: Wear suitable protective clothing, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: Fc1ccc(cc1)N2CCNCC2
(2)InChI: InChI=1/C10H13FN2/c11-9-1-3-10(4-2-9)13-7-5-12-6-8-13/h1-4,12H,5-8H2
(3)InChIKey: AVJKDKWRVSSJPK-UHFFFAOYAS