Molecular Structure of 2,5-Bis(4-aminophenyl)-1,3,4-oxadiazole (CAS NO.2425-95-8):

IUPAC Name: 4-[5-(4-Aminophenyl)-1,3,4-oxadiazol-2-yl]aniline
Molecular Weight: 252.27128 [g/mol]
Molecular Formula: C₁₄H₁₂N₄O
XLogP3-AA: 1.7
H-Bond Donor: 2
H-Bond Acceptor: 5
EINECS: 219-373-8
Melting Point: 250-254 °C(lit.)
storage temp.: -20 °C
Index of Refraction: 1.669
Molar Refractivity: 72.39 cm³
Molar Volume: 193.8 cm³
Surface Tension: 63.8 dyne/cm
Density: 1.301 g/cm³
Flash Point: 261.1 °C
Enthalpy of Vaporization: 77.84 kJ/mol
Boiling Point: 508.1 °C at 760 mmHg
Vapour Pressure: 1.91E-10 mmHg at 25 °C
Product Categories: Heterocycles; electronic
SMILES: n1nc(oc1c2ccc(N)cc2)c3ccc(N)cc3
InChI: InChI=1/C14H12N4O/c15-11-5-1-9(2-6-11)13-17-18-14(19-13)10-3-7-12(16)8-4-10/h1-8H,15-16H2
InChIKey: MJZXFMSIHMJQBW-UHFFFAOYAG

Safety Information of 2,5-Bis(4-aminophenyl)-1,3,4-oxadiazole (CAS NO.2425-95-8):
Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 3

 2,5-Bis(4-aminophenyl)-1,3,4-oxadiazole (CAS NO.2425-95-8), its Synonyms are 4,4'-(1,3,4-Oxadiazole-2,5-diyl)dianiline ; 1,3,4-Oxadiazole,2,5-bis(p-aminophenyl)- (6CI,7CI,8CI) ; 2,5-Bis(p-aminophenyl)-1,3,4-oxadiazole ; 2,5-Di(p-aminophenyl)-1,3,4-oxadiazole ; Benzenamine,4,4'-(1,3,4-oxadiazole-2,5-diyl)bis- .