Molecular Structure of Benzenamine,4-(4-methyl-1-piperazinyl)- (CAS NO.16153-81-4):

IUPAC Name: 4-(4-methylpiperazin-4-ium-1-yl)aniline 
Empirical Formula: C₁₁H₁₇N₃
Molecular Weight: 191.2728
H bond acceptors: 3
H bond donors: 2
Freely Rotating Bonds: 2
Polar Surface Area: 9.72 Å²
Index of Refraction: 1.588
Molar Refractivity: 58.96 cm³
Molar Volume: 175 cm³
Surface Tension: 45.6 dyne/cm
Density: 1.092 g/cm³
Flash Point: 164 °C
Enthalpy of Vaporization: 59.62 kJ/mol
Boiling Point: 351.5 °C at 760 mmHg
Vapour Pressure: 4.09E-05 mmHg at 25°C
Melting point: 89-91 ºC
Product Categories: Piperidine; Amines and Anilines; Heterocycles; Amines; Phenyls & Phenyl-Het; Piperaizine; API intermediates; Piperazidine intermediates; Piperazines; Phenyls & Phenyl-Het

Hazard Codes: C
Risk Statements: 34
R34:Causes burns.
Safety Statements: 26-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: 3259
Hazard Note: Corrosive
HazardClass: 8
PackingGroup: III

 Benzenamine,4-(4-methyl-1-piperazinyl)- , with CAS number of 16153-81-4, can be called 1-(4-Aminophenyl)-4-methylpiperazine ; 1-(p-Aminophenyl)-4-methylpiperazine ; 4-(4-Methyl-1-piperazinyl)aniline ; 4-(4-Methylpiperazin-1-yl)benzenamine ; 4-Methyl-1-(4-aminophenyl)piperazine .