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156-25-2

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Basic Information
CAS No.: 156-25-2
Name: 4'-N,N-dimethylamino-1'-phenylazo-3-pyridine
Molecular Structure:
Molecular Structure of 156-25-2 (4'-N,N-dimethylamino-1'-phenylazo-3-pyridine)
Formula: C13H14 N4
Molecular Weight: 226.281
Synonyms: Benzenamine,N,N-dimethyl-4-(3-pyridinylazo)- (9CI); Pyridine,3-[[p-(dimethylamino)phenyl]azo]- (6CI,7CI,8CI);3-[4-(Dimethylamino)phenylazo]pyridine; N,N-Dimethyl-4-(3-pyridylazo)aniline;NSC 231517
Density: 1.1761 (rough estimate)
Boiling Point: 357.89°C (rough estimate)
Flash Point: 191.4oC
Safety: Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of NOx.
PSA: 40.85000
LogP: 3.56300
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Chemistry

 

Molecule structure of Pyridine-3-azo-p-dimethylaniline (CAS NO.156-25-2):

IUPAC Name: N,N-Dimethyl-4-pyridin-3-yldiazenylaniline 
Molecular Weight: 226.27706 g/mol
Molecular Formula: C13H14N4 
Density: 1.08 g/cm3 
Boiling Point: 392.8 °C at 760 mmHg 
Flash Point: 191.4 °C
Index of Refraction: 1.588
Molar Refractivity: 70.1 cm3
Molar Volume: 208 cm3
Polarizability: 27.79×10-24 cm3
Surface Tension: 40.5 dyne/cm 
Enthalpy of Vaporization: 64.26 kJ/mol
Vapour Pressure: 2.22E-06 mmHg at 25 °C
XLogP3-AA: 2.8
H-Bond Acceptor: 4
Rotatable Bond Count: 3
Exact Mass: 226.121846
MonoIsotopic Mass: 226.121846
Topological Polar Surface Area: 40.9
Complexity: 244
Canonical SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CN=CC=C2
InChI: InChI=1S/C13H14N4/c1-17(2)13-7-5-11(6-8-13)15-16-12-4-3-9-14-10-12/h3-10H,1-2H3
InChIKey of Pyridine-3-azo-p-dimethylaniline (CAS NO.156-25-2): WINWFWAHZSMBJQ-UHFFFAOYSA-N

Safety Profile

Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of NOx.

Specification

 Pyridine-3-azo-p-dimethylaniline (CAS NO.156-25-2) is also named as 2-(4-Dimethylaminophenylazo)pyridine ; 3'-(4-Dimethylaminophenyl)azopyridine ; 4'-N,N-Dimethylamino-1'-phenylazo-3-pyridine ; 5-22-14-00629 (Beilstein Handbook Reference) ; BRN 0014276 ; CCRIS 6470 ; N,N-Dimethyl-4-(3'-pyridylazo)aniline ; N,N-Dimethyl-p-(3-pyridylazo)aniline ; NSC 231517 ; Benzenamine, N,N-dimethyl-4-(3-pyridinylazo)- (9CI) ; Pyridine, 3-(p-(dimethylamino)phenylazo)- .