Empirical Formula of N-Formyl-N-methyl-p-(phenylazo)aniline (CAS NO.4845-14-1): C₁₄H₁₃N₃O
Molecular Weight: 239.2725 
Index of Refraction: 1.582
Density: 1.09 g/cm³
Flash Point: 215 °C
Enthalpy of Vaporization: 68.76 kJ/mol
Boiling Point: 431.9 °C at 760 mmHg
Vapour Pressure: 1.15E-07 mmHg at 25 °C
Structure of N-Formyl-N-methyl-p-(phenylazo)aniline (CAS NO.4845-14-1):
                       
IUPAC Name: N-Methyl-N-(4-phenyldiazenylphenyl)formamide
Canonical SMILES: CN(C=O)C1=CC=C(C=C1)N=NC2=CC=CC=C2
InChI: InChI=1S/C14H13N3O/c1-17(11-18)14-9-7-13(8-10-14)16-15-12-5-3-2-4-6-12/h2-11H,1H3
InChIKey: PUPBFFGOAGWILX-UHFFFAOYSA-N

Questionable carcinogen with experimental tumorigenic data. When heated to decomposition N-Formyl-N-methyl-p-(phenylazo)aniline (CAS NO.4845-14-1) emits toxic fumes of NO_x.

 N-Formyl-N-methyl-p-(phenylazo)aniline , its cas register number is 4845-14-1. It also can be called Aniline, N-formyl-N-methyl-p-(phenylazo)- ; and 4-Formylmonomethylaminoazobenzene .