Molecular Structure of 1,5-Naphthyridine (CAS NO.254-79-5):

IUPAC Name: 1,5-naphthyridine
Molecular Formula: C₈H₆N₂
Molecular Weight: 130.15g/mol
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 25.78Ų
Index of Refraction: 1.653
Molar Refractivity: 40.27 cm³
Molar Volume: 109.9 cm³
Surface Tension: 54.8 dyne/cm
Enthalpy of Vaporization: 46.64 kJ/mol
Vapour Pressure: 0.0374 mmHg at 25°C
Melting Point: 74°C
Boiling point: 248.9 °C at 760 mmHg
Flash Point: 107.8 °C
Density: 1.183 g/cm³
InChI
InChI=1/C8H6N2/c1-3-7-8(9-5-1)4-2-6-10-7/h1-6H
Smiles
n1c2c(nccc2)ccc1
Product Categories: Pyridine; N-Containing; Heterocyclic Building Blocks; Others

Safety Information of 1,5-Naphthyridine (CAS NO.254-79-5):
Hazard Codes: Xn
Risk Statements: 36/37/38-41-37/38-22 
22:  Harmful if swallowed
36:  Irritating to the eyes 
37:  Irritating to the respiratory system 
38:  Irritating to the skin 
41:  Risk of serious damage to eyes 
Safety Statements: 26-36/37/39-39
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36:  Wear suitable protective clothing  
37:  Wear suitable gloves  
39:  Wear eye/face protection 

  1,5-Naphthyridine , with CAS number of 254-79-5, can be called 1,5-Naphthyridine ; 1,5-Diazanaphthalene ; Pyrido[1,5-B]pyridine ; 1,5-Pyridopyridine ; 1,5-Naphthyridine(6ci,8ci,9ci) ; Pyrido[3,2-B]pyridine .