99163-22-1

Basic information

• Product Name: Benzaldehyde, 4-propoxy-, [(4-propoxyphenyl)methylene]hydrazone, (E,E)-
• CAS NO: 99163-22-1
• Molecular Formula: C20H24N2O2
• Molecular Weight: 324.423
• Mol File: 99163-22-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Benzaldehyde, 4-propoxy-, [(4-propoxyphenyl)methylene]hydrazone, (E,E)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzaldehyde, 4-propoxy-, [(4-propoxyphenyl)methylene]hydrazone, (E,E)-(99163-22-1)
• EPA Substance Registry System: Benzaldehyde, 4-propoxy-, [(4-propoxyphenyl)methylene]hydrazone, (E,E)-(99163-22-1)

Safety Data

• Hazardous Substances Data: 99163-22-1(Hazardous Substances Data)

Upstream product

• 5736-85-6 4-propoxybenzaldehyde 
• 123-08-0 4-hydroxy-benzaldehyde 
• 3256-37-9 4-propyloxy-benzaldehyde-semicarbazone 

Relevant articles and documents

Mesogenic Properties as an Analytical Tool for the Pyrolytic Transformation of Substituted Aryl Aldehyde Semicarbazones to Corresponding Benzalazines

The evaluation of semicarbazones for the mesogenic properties revealed that it undergoes transformation to azine at elevated temperatures.The transformation products were identified by modern tools.The diazines of 4-n-alkoxy benzaldehydes are reported to be mesogenic.It was planned to use mesomorphism as a tool for analysis.We had established that transformation of a semicarbazone of aldehyde gives diazine.With this in view fourteen 4-n-alkoxybenzaldehyde semicarbazones were synthesized and heated at 260 deg C in an oil bath.The pyrolized products were purified and evaluated for their mesogenic properties.The mesogenic properties of pyrolized products exactly tally with the diazines reported by Shaw and Brown.A few diazines which were not reported are also obtained in present study and are characterized.They also exhibit mesomorphism.The study indicates that if the transformation products can be designed which are conducive to mesomorphism, the mesogenic properties can be the tool to understand it and identify the products.The calorimetric study is carried out and enthalpy values are obtained to understand thermodynamic behavior.