Molecular Structure of 4-Di-p-tolylamino-benzaldehyde (CAS NO.42906-19-4):

IUPAC Name: 4-(4-methyl-N-(4-methylphenyl)anilino)benzaldehyde 
Empirical Formula: C₂₁H₁₉NO
Molecular Weight: 301.3817
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 4
Polar Surface Area: 20.31 Å²
Index of Refraction: 1.649
Surface Tension: 48.4 dyne/cm
Density: 1.138 g/cm³
Flash Point: 182.4 °C
Molar Refractivity: 96.49 cm³
Molar Volume: 264.8 cm³
Enthalpy of Vaporization: 73.31 kJ/mol
Boiling Point: 470.5 °C at 760 mmHg
Vapour Pressure: 5.03E-09 mmHg at 25°C
Melting point:109 °C
InChI
InChI=1/C21H19NO/c1-16-3-9-19(10-4-16)22(20-11-5-17(2)6-12-20)21-13-7-18(15-23)8-14-21/h3-15H,1-2H3
Smiles
C(c1ccc(cc1)N(c1ccc(cc1)C)c1ccc(cc1)C)=O
Product Categories: electronic; Electronic Chemicals; Yellow crystalline powder; Yellow Powder

 4-Di-p-tolylamino-benzaldehyde , its cas register number is 42906-19-4. It also can be called 4,4'-Bis(4-methylphenyl)-aminobenzoaldehyde ; 4-(di-p-tolylamino)benzaldehyde ; 4-formyl-4',4''-dimethyltriphenylamine ; 4-[bis(4-methylphenyl)amino]benzaldehyde ; 4-[bis(p-tolyl)amino]benzaldehyde ; 4-di-p-tolyaminobenaldehyde;4,4-bis(4-methylphenyl)aminobenzaldehyde ; 4-(di-p-tlylamino)benzaldehyde and so on.