Molecular Structure of 2-Methylpyrimidine (CAS NO.5053-43-0):

IUPAC Name: 2-methylpyrimidine 
Empirical Formula: C₅H₆N₂
Molecular Weight: 94.1145
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 25.78 Å²
Index of Refraction: 1.503
Molar Refractivity: 27.26 cm³
Molar Volume: 92.1 cm³
Surface Tension: 41 dyne/cm
Density: 1.021 g/cm³
Flash Point: 20.3 °C
Enthalpy of Vaporization: 34.52 kJ/mol
Boiling Point: 122.1 °C at 760 mmHg
Vapour Pressure: 17 mmHg at 25°C
InChI
InChI=1/C5H6N2/c1-5-6-3-2-4-7-5/h2-4H,1H3
Smiles
n1c(C)nccc1
Product Categories: Pyrimidine; Building Blocks; Heterocyclic Building Blocks; Pyrimidines

Hazard Codes: Xn
Risk Statements: 10-36/37/38-41-37/38-22
R10:Flammable. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R41:Risk of serious damage to the eyes. 
R37/38:Irritating to respiratory system and skin. 
R22:Harmful if swallowed.
Safety Statements: 16-26-36/37/39-39
S16:Keep away from sources of ignition. 
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. 
S39:Wear eye / face protection.
RIDADR: 1993

  2-Methylpyrimidine , with CAS number of 5053-43-0, can be called pyrimidine, 2-methyl- ; methyl-pyrimidine-5- ; 2-Methyl-pyrimidine .