Molecular Structure of 1-(5-Chloro-2-methylphenyl)piperazine (CAS No.76835-20-6):

Molecular Formula: C₁₁H₁₅ClN₂
Molecular Weight: 210.7032
CAS No: 76835-20-6
H bond acceptors: 2
H bond donors: 1
Freely Rotating Bonds: 1
Polar Surface Area: 6.48 Å²
Index of Refraction: 1.553
Molar Refractivity: 59.52 cm³
Molar Volume: 185.9 cm³
Surface Tension: 38.8 dyne/cm
Density: 1.133 g/cm³
Flash Point: 165.1 °C
Enthalpy of Vaporization: 59.39 kJ/mol
Boiling Point: 349.4 °C at 760 mmHg
Vapour Pressure: 4.7E-05 mmHg at 25°C
Appearence: Clear colourless to light yellow liquid
IUPAC Name: 1-(5-Chloro-2-methylphenyl)piperazine 
InChI: InChI=1/C₁₁H₁₅ClN₂/c1-9-2-3-10(12)8-11(9)14-6-4-13-5-7-14/h2-3,8,13H,4-7H2,1H3
InChIKey: FVDJRHNUZNLRJC-UHFFFAOYAB
Std. InChI: InChI=1S/C₁₁H₁₅ClN₂/c1-9-2-3-10(12)8-11(9)14-6-4-13-5-7-14/h2-3,8,13H,4-7H2,1H3
Std. InChIKey: FVDJRHNUZNLRJC-UHFFFAOYSA-N
Product Categories: API intermediates

Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 37/39-26
S37/39:Wear suitable gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

  1-(5-Chloro-2-methylphenyl)piperazine (CAS No.76835-20-6), its synonyms are N-(5-Chloro-2-methylphenyl)piperazine ; Piperazine, 1-(5-chloro-2-methylphenyl)- .